Yep, I'm in this boat. After years of macs my next will be a FreeBSD Desktop.
edit: Although phone is much harder. I guess I'll just turn all the 'stuff' like icloud off, use only signal and my banking/etc apps, and get a separate camera.. Anyone found a less painful way to live without an iPhone/Android?
As someone who had been in the Apple ecosystem since Windows XP, it was difficult to lose that constant seamless interplay between my phone and computer. But honestly? The trade-off was worth it in the end. I’m 8mo into Linux-only desktop and man…it’s great.
Look into KDE Connect¹ - it provides some of that seamless experience. It even has some basic support for syncing between iOS and Gnome, but it's originally designed for seamless integration between Android and KDE's plasma desktop.
Note that Google Pixel hardware is just fine and not evil, and they're looking at a different vendor for the next version anyway, because Google is making it so the Pixel will only run approved OSes.