My personal experience is that the increase in ads has encouraged me to subscribe to creators I like via Patreon and view content on there. If many people are doing this, I wonder if it skews the view statistics and, therefore, lowers the number of recommendations for the best channels. In turn, this makes it less likely for good channels to be discovered. The increase in YouTube ads also makes me much less interested in browsing there, and I am finding other things to do instead.

You just don't make enough money from ads anyway, a lot of creators now see YT as more of top of funnel advertising leading you to a patreon or even more common livestream format where they make the real money from superchats.