If you have 0.2 BTC
It's not wrong to split them into two separate cold storage, airgapped devices.
Splitting fund between different wallet is actually a good security measure which i think everyone in crypto should learn, just like a few years back when we would advice ourselves on the dangers of one putting all his or her eggs in one basket, which if anything goes wrong, all the eggs will be damaged/lost.
Starting to assume that you can get hacked is unfortunately now the beginning of wisdom in this crypto space today.
Don't sit back and feel safe because your crypto wallet isn't touched, yet.
Well, i don't or wont agree with this advice because it will do nothing but create/install fear/panic in the hearts of investors, and life is naturally designed/programmed in such a manner that what we fear most is what tends to somehow find its way into our life.
Investors should do everything they know is good to ensure they are never a victim of any type or form of hack, but they should never assume they would get hacked, because once you have this particular fear inside of you, you might actually end up becoming a victim, don't under-estimate the power of the human mind.