It hasn’t changed yet...

However when i sighn into my microsoft or xbox live account, or whatever... it showes my new usernam. Only when i load in in minecraft does it still show the randomly generated one.

do i just have to be patient?

i knlw this sounds like my first question but...

Gamertags can take up to 48 hours to change. Be patient. If it doesn't change after the 48 hours then contact Xbox Support.
support.xbox.com/contact-us

Someone. Hacked ur IP probably ,they can go in ur email,bank phone and changing password. Doesnt do nothing i got 450 taken from my bank and Microsoft did nothing for me they didnt even lock my card num after multiple small transactions like wow there
the ones who lock u into sucription u should be able too and theres no anti virus obviously im on xbox one all Microsoft. Should be responsible all systems should come. With VPN Or at least offer n anti virus app

yep, takes time to propogate across all services, usual rule of thumb is 48 to 72 hours for completion, if after 72 hours it still shows wrong in select apps/games then contact support.

Someone. Hacked ur IP probably ,they can go in ur email,bank phone and changing password. Doesnt do nothing i got 450 taken from my bank and Microsoft did nothing for me they didnt even lock my card num after multiple small transactions like wow
there the ones who lock u into subscription u should be able too and theres no anti virus obviously im on xbox one all Microsoft. Should be responsible all systems should come. With VPN Or at least offer n anti virus app

what are you on about, he is asking how long for the name change to happen. no such thing as hacking an ip as this is a public address anybody can obtain legally. if you are having issues with a compromised account then raise this with support and if you
want to ask questions raise your own thread.