If it were me it'd be PC (1080ti build maybe?) + gamepass + PS4/pro, most sony exclusives run pretty well on ps4 for now and the ps4 is cheap and the ps5 is near peak price and will only get more affordable in a few years. Only games that really feel next gen are ratchet and clank and returnal (which coming to PC, but requires beefy specs probably). Especially considering you play at 1080p and don't care about future proofing.

Series S is also a great gamepass machine at 1080p overall imo. Ps5 does come with that collection of 20 or so games though, some goodies in there. Maybe series S + Ps4/pro? Also do you have a spare controller like an xbox one? Cause that brings down the price if you want to do two player or something.

Ps4 by itself is also still solid option, the new mid tier sony subscription is alright and gives access to some good games. What does the xbox really offer that playstation/pc do not game wise? Halo/gears/forza? How much do you personally value those franchises, that is a big consideration. Although eventually we should see some bethesda (and maybe activision one day) exclusives on xbox, but if you don't care about future proofing maybe just enjoy what is already available.

So its gamepass vs PS5 exclusives really (maybe also consider the price differnce between installing a generic fast SSD to the PS5 vs the proprietary more expensive Xbox ones. That is if you plan to extend your storage size) Also do you have any old peripherals or games attached to either platform you would want to continue using?. Do you like owning things physically or even like saving money at all since physical games tend to be cheaper/have better sales/can be bought and sold on the pre owned market? Should also note the PS5 comes with that big set of PS4 games in that PSplus collection thing too. I personally also like gyro aiming that playstation has (but basically never uses for some reason?). For Gamepass you could also consider getting a PC/steam since all Xbox games are available on PC also.

Despite the budget hardware, it has a premium price point, with no price drops in sight for itself or the expensive games. Nintendo games are very good though, especially for local multiplayer or families. Honestly I got better value for money with the Wii U. I'd say if you are really excited about Nintendo exclusives or have friends to play Smash/Mario kart with the value proposition is solid. (Clearly as it sells very well). As much as I like the steam deck, its pretty chonky, and pricey enough that I'd be afraid to drop it while travelling, compared to say, a switch lite. (Still absolutely worth it for the wide game support). Imo, a huge appeal of PC/xbox/steamdeck for me is the ability to use old controllers and peripherals which saves tonnes of money. Like standard USB C video output for the steam deck, using old PS4/xbox 360 controllers for PC etc. It doesn't help that Nintendo never invested in keeping games from your account playable on later consoles like all its competitors have. I suspect that will have to change with the next console.