Ran an Arc A750 for a couple of years. Perfectly capable card. Don‘t expect miracles of performance@4k but it could hold its own on modern games (BG3, CS2, Helldivers2). Mostly ran 1440. (also old games like Company of Heroes.. but not really stressing the card with that one)
Also ran it in Linux for quite a while. Set and forget there. It was easily a smooth card. I‘m a fan of Arc. I‘m running a 7900xtx these days as I snagged one cheap, but I‘d easily look at Arc again. I‘ve heard Battlemage is really a good step up.