Don’t know if it’ll cover all your use cases, but I was looking for something similar and recently got my hands on a Steam Deck. Have been very pleased with the purchase so far. To be fair, I haven’t gotten into customizing the desktop yet, but I’m sure anything’s achievable since it’s just running Arch.

Considering that original works are discarded, it’s strange how effective they’re at plagiarizing them

My dad is Dracula (and also an asshole)