Are stand-alone 4K Blu-ray players better than Xbox Series X and PS5?

I think that standalone players being better than Xbox/PS5 is a different argument than standalone players being better at playing Blu-ray discs than Xbox/PS5. Because if the question is just whether they are better in general, my answer would be no. Xbox/PS5 may be hit and miss as far as which discs they can play (and the level of quality at which they play them) but standalone Blu-ray players don't play Xbox/PS5 games at all, ever. If you don't care about playing games then a standalone Blu-ray player may be a better choice - but if you didn't care about games you probably wouldn't be considering buying a game console in the first place.
 
I was pleased with playback of bluray/4k on my old Xbox Series X. It may not do it better than a standalone, but I was content with the quality.