KillerbeeNL, yes I changed the DNS to 8.8.8.8 and 8.8.4.4 and restarted the console. Nothing changed. I then uninstalled the game, restarted the console and checked the DNS yet again (still as above) and reinstalled. It still says 1.17.1005.70 and that it is up to date (nothing to install), as Reginald above me said for their's too. Also similar to their issue, I AM able to log into MC on my Switch and it is updated to 1.18 as well as on my friend's console Xbox X).
Additionally, now, all of my old worlds (from 1.17) are showing as "corrupted" when last week, they worked fine. Are these known issues for the 1.18 update?
Thanks.
Update! It's solved! Thanks to someone on Reddit, we found a solution!
They told me to check the xbox insider hub and remove anything related to Minecraft. Despite having done factory resets, this was still active for me! If you are in the same boat that I was, I highly suggest trying this. I'm thrilled that it worked!
Reddit thread with solution