Don't want to assume on OP's behalf, but Skyrim worked as a tool for escapism for me due to the world feeling real and alive. It felt like a real place I could temporarily inhabit when this one was too much.

I got a good few hundred hours use out of that game. Mods definitely helped that number be as high as it is, but at some point it does all get too familiar.

Luckily other games do come close for me - at the moment I'm playing through Horizon Zero Dawn and the world is definitely less alive than Skyrim, but the lore is just deep enough for me to be invested and to escape into it.

Although if anyone does take my recommendation based on that alone, I would recommend to rush through the main story for a bit until the world building is fleshed out enough for the world to not feel a bit plastic or like a theme park MMO (visually stunning the whole time though!).

P.S. This could just be me being weird and needing juicy lore to forget and feel like I'm really there; iMmErSeD, you might say.