I think so too. I'll be going to UK, returning in June, and I am expecting things to be straightforward by then.
I expect they'll still be making us pay for Covid insurance, which really ought to be rolled into standard medical cover some time soon.
The other possible wrinkle is that I get Covid in UK and get over it but still test positive upon return to Thailand. Some tests will still return a positive days or even weeks after you stop being infectious.