Before you give advice it would be better to do your homework, also, just as important, work on the way you try to explain things because there's a lot of mistyping in that and the way you phrase things is just making it worse.


 It can take 2 hours or 2 days or ten days or 2 minutes, what matters is the fee, that's the most important thing one should look at, volume on its own without another metric is irrelevant, the mempool can be at a record high with a million transactions waiting if you pay 500sat/b it will get confirmed in the next block just as the opposite is true, paying just 1sat/b might get you stuck for days with just a few tens of thousands of transactions waiting on top of yours.


I don't think there is a single person out there besides you who buys coins from a guy who uses an ATM to send you the coins.

Apart from the volume of transaction which causes delay we can also add sending of fake coins, sending of fake coin looks very real as the sender will even advance to sending you screenshot of payment, and most time these coins will reflect in your wallet but disappear after some days, if you rely only on the confirmation process whereby coins will reflect in your wallet, you are likely to fall for this scam, the name of the app used for this is Bitcoin flasher.


The sender might even use the word ATM to cover up for the scam that is, if it is actually a scam transaction.

Bitcoin Transaction It totally depends on Satoshi. Because the more satoshi you pay as gas fee, the faster the transaction will be completed. If you give bitcoin transaction as 1 satoshi volume then hundreds of thousands more transactions will be buried then your transaction will be stuck for a long time. So to control it, you must increase the amount of Satoshi as volume, then the transaction will be completed very quickly. In most cases you can pay satoshi according to blocks and your transaction will complete quickly depending on the gas volume satoshi you pay.

Concerning how long it takes to receive bitcoin, if the bitcoin is taking too long to show up in the wallet, the user should at least confirm that the other party have sent the transaction by seeing the incoming transaction in the wallet, that is the "waiting confirming" notification, I think every wallet < both custodial and non-custodial wallets have this feature, even the centralized exchanges also have this feature, so the receiver should simply look for this notification to confirm whether or not, his or her bitcoin has been sent by the sender, there is absolutely no need for Blockchair, except on occasions where the receiver wants to find out more about the transaction, like the estimated time the first confirmation is likely to arrive, or the fees the sender paid for the transaction and so on.

But when it comes to confirming whether bitcoin has been sent or not, the receiver can simply confirm this from his or her wallet's notification tab, except the user is yet to understand his or her chosen bitcoin wallet, then I think that is a different thing altogether .

@OP did you ever use Bitcoin ATM? if you not yet use it don't act like you're know how it works. Bitcoin ATM always charge a high fee similar like centralized exchange, the reason is they want to make sure you will receive your Bitcoin ASAP, no need to wait for 10 hours or more.

If the transaction is already have 2-3 confirmations, it's already safe. If the seller or buyer send you the receipt of confirmation, don't entirely trust it because it can be photoshopped. The best is you need to check your wallet or the blockchain explorer.

Just like what @Stompix stated, there is nothing like sending fake bitcoins because that is what the Bitcoin Nodes are there for. Before your transaction is broadcasted on the blockchain each nodes check the transaction and if anything unusual is found the transaction is dropped immediately. So saying a bitcoin transaction could even been seeing on your wallet is definitely wrong because it is after the nodes check the transaction that it could be added to mempool and subsequently the blockchain. Any transaction not in the blockchain can never be seeing in the wallet, in fact it takes at least one block confirmation for it to appear on an exchange and probably three for wallets. So a fake bitcoin transaction cannot pass this processes.

The only way bitcoin cannot be seeing on the receiving address is when it is dropped back to the sender addresses after many days of unconfirmation in the mempool or if it is double spent to another wallet.

BTC tx's do not use gas fee, that is for Ethereum, BTC tx's use transaction fees. Before making a BTC tx, it is best to check  https://mempool.space/ and choose the fee rate that you want, there you'll see the fee rate for different priorities and the fee rate you decide on depends on you and the time you are ready to wait.
I don't think there is anything great about this advice because even the op doesn't understand what they were saying. There is nothing stressful or unsettling about BTC tx's, you just need to understand how it works, which is easy to do so.

Please sir I need links for further study to be absolutely clarified on the Bitcoin flasher scam, and thanks for the correction.

 Thanks for making this useful post it could be explained more with some examples but it also does the work fo a slight reminder for me. And thanks again for that. One more thing I did not know before how Bitcoin ATMs work because I never intend to write something before them before plus never get to try them too.

So, I am amazed to hear that in Bitcoin ATMs you also do some P2P transactions but in the middle it is ATMs. This is what I understood from your post. I might be wrong but if that's the case then is that body whom we have to call centralized? i mean obviously, that person must be a central body or I say middlemen then why we need to use ATMs to pay high fee while we can also select the easy way.