I think the last time I had Windows installed was right around the release of Proton in 2018. Those initial releases were not great but the trend was very obvious.

There comes a point were you just don't miss it. The only moments that it is apparent is that disassociation you have when someone else just assumes you run Windows. I don't blame them, I am statistically the odd one there, but that is when you have to figure out things your way.