Its all pretty simple, ofc xbox one is roughly 30% weaker and coz of ddr3 harder to make games for, but true reason why some devs dont wanna port on it is simple math, only around 55m total xbox one have sold( including one X), and basically every active/hardcore gamer, after almost 2,5years of next gen consoles launch already bought series s/x, so only ones with last gen consoles are xbox users who dont buy games at all, hence almost 0 benefit to put those games in there, thats it, mystery solved.
Ps4 being roughly 30% stronger isnt the current problem of xbox one(and one X who is actually stronger from series S gpu wise), just how lil their owners left, active owners who buy games, with ps4 instal base is over 2x bigger ( 117,2m official data from sony
https://metro.co.uk/2022/08/10/ps4-...-2-million-2nd-biggest-console-ever-17161895/ ) and no gamepass so they still gotta buy games after all, but i bet 2023 will be last year we getting last gen ps4/pro ports too, for most games- probably with exception of fifa which wont even be full ports but downgraded versions.