Games Crashing on Xbox One Series X

I have experienced a number of crashes on namely; Halo:Infinite, Warhammer 40K Darktide, DayZ and Fortnite. (So much that I can’t actually finish a match on Halo, Warhammer or Fortnite before it crashes.)

I have done all the support on forums. Reset the console, changed HDMI cables, Cycled the power on the console, redownloaded the games, cleared the cache on the console, deleted saved data and had it re-upload to the cloud. I have even opened the Xbox’s case and cleaned out the dust from it.

I’m not that tech savvy, so if there’s any help to be given here I’ll need step by step instructions or if this is a job for technicians I just need to be told.

:)