I like TLOZ:BotW a lot. But I need to say that it is my favorite game so it could not be that relaxing for others. Forager is also a great casual game. I cab also genuinely recommend these:
I like tuta.com (formerly Tutanota). The mobile app is really simple—so much so that they’ve only recently added a red and blue themed dark mode. Aside from that, I have never encountered any problems in my few years of using it.
They offer both free and paid plans. I recently decided to subscribe to Tuta to support their project, although in previous years the free plan worked fine for me.
The following are some of my most played
Minecraft - Surely about 3k Hours Surviving Mars - 1k Hours Astroneer - 1.5k Hours (Mostly plaud in Early Access, newer versions kinda suck) Shapez.io - 500hours Maybe Portal 2 - 250hours