XCOM meets Diablo is a decent enough way of putting it, as long as you don’t expect the mechanics to be 1:1. Since you brought up positioning, there’s no grid for movement, or flanking, for example. Battles are turn-based, like XCOM, but it’s not split in player turn and AI turn, instead, each individual character/npc gets its own turn, with the order decided based on dice rolls and whatever modifiers are applicable.
With the release of the fold5 I was considering trading in my S22 Ultra to get one, but even with that and all the promotions, it would still cost more than 1k € that I’d have to pay up front, which I’d rather not do.
Microsoft made the surface duo some two years ago and it didn’t do great (though the screen wasn’t necessarily the reason for that). The problem I see with that approach is that you can’t have content going all the way across due to the bezel between the screens.
To add to some of the suggestions in the thread, check out Solasta: Crown of the Magister, it didn’t have as big of a budget as something like Baldur’s Gate 3, but it’s a fun little game that uses the D&D 5E rules (the ones that were in the SRD, to be more precise).
I can see it’s on sale now, but I will say that some content is locked behind DLCs. It also has support for steam workshop, allowing people to make custom campaigns, and I recommend the Solasta Unfinished Business mod, which adds a whole bunch of stuff that’s missing from the base game, for example multiclassing.
I wouldn’t label things they changed compared to 5e rules as necessarily broken, unless the way they say it’s implemented doesn’t actually match what’s happening.
I picked half elf as race initially because I was used to the +2 +1 +1 spread they get, which isn’t the case in the game, or hypnotic pattern, which only lasts 2 turns instead of 10. Is the game broken? No, it’s just me assuming stuff will be 1 to 1 to the 5e rules. And it goes both ways, took me a bit to realize they don’t follow the spellcasting rules to a t, and you can cast leveled spells with both your action and your bonus action.