nothing we can do now but move on, even CP3 couldnt win a championship with the Suns because they got stopped by Giannis and the crew. Now both teams actually look good (Suns and Rockets), except the Bucks - but its still too early to judge. A lot can still happen since the season ends next year.
For now though, we can give Durant credit for what he brought to the Rockets.
To be fair CP3 had a lot of bad decisions on teams when he makes a move, it was a bit on him to fail to win a ring all his career considering how he makes his picks.
Suns was obvious that they wouldn't win, they trusted the entire team on a very old CP3, and a young Booker, with Durant carrying the load, that wasn't good enough and we all knew it and they obviously didn't stand a chance, lost easily.
I would assume that CP3 will finish rest of his career without a ring, that's just given at this moment.
Suns will not do that great for a long time too, the owner is a cheap one unwilling to pay luxury tax, so we all know that he will just let the team tank for a while and get some draft picks and hope that would work.