• Death's Door just a stunning game in regards to art style and music/sound design. Really creative boss battles too that never felt stale. Can be challenging.
• Omno very chill game with a really cool vibe and music. No combat to speak of. Short though.
• Pseudoregalia PS1-style graphics but oddly gorgeous. It's a metroidvania of sorts with some of the best movement mechanics in recent memory. Highly recommend a look at least.
• A Short Hike really cute game that is all about exploration. As the title suggests, not a very long game. On the Switch version there was a toggle to turn off a graphics filter that is reminiscent of the 3DS. I personally liked it, but I have not checked the Steam version for the same option.
• Sea Of Stars releases on 29 Aug, but there is a demo available. Between the gorgeous 16bit inspired graphics, the lighting effects, and the incredible soundtrack this would be an instant buy for me if it weren't hitting Game Pass on day one! I may still plunk down on a physical copy. Leaning towards Switch, assuming it plays as well there as other platforms.

These are maybe not what some would consider beautiful, but I love the variation in art styles and how they can be beautiful while either being simplistic or retro-inspired. All but Sea Of Stars were very cheap during the Steam Summer sale or in a Fanatical bundle that may or may not still be available right now.