That looks like a great watch! Thanks for the suggestion. I'm in the process of leaving the Apple ecosystem as well and have been looking for a Watch replacement. It's this or the Galaxy Watch 4.
You're welcome! If you want more features, the GTR 2 (regular, not "e") is only ~20 EUR more and gives you WiFi and some storage for music and some other extra features.
The GTR 2e supposedly last much longer on a charge though.
I've got the "always on display" feature activated and I project to have 7-10 days of battery life.