I migrated back to android a few months ago from about 5 years on iOS and watchOS. I generally “switch teams” every few years and both platforms have their strengths.
I have a pixel watch now and there are a couple of compromises coming from an apple watch in my use case. Battery is no where near as good. The Stocard app where you can store many of your retail store loyalty cards is handy on a watch to load up the bar code to scan at stores, the pixel watch loads up a very small bar code that many scanners have trouble with so I just pull out my phone for that.
But on the other hand having a watch face that is not just one of apples approved 15 faces is nice. I like the circular design more.