Personally, I'm a huge fan of Hollow Knight, Ori and the (Blind Forest/Will of the Wisps), and Kingdom Hearts. Orchestral soundtracks are just something else...
I have so many favorites, Ori soundtracks are amazing, Kingdom Hearts, Genshin Impact, Minecraft
For more lighthearted yet genius silliness though: Part Time UFO
Not really a game but a visual Novel everyone needs to read and listen to: Umineko
I never realized that Minecraft used an outside musician for their songs. I always thought it was in house until one night my wife was listening to one of her sleepy time playlists and it suddenly started playing a Minecraft song. I asked why she was listening to Minecraft and she had no idea what I was talking about since she had never played the game. I checked her phone and sure enough it was on the artist's album and not on a Minecraft one.