You should be very glad you did not move to the UK. The Home Office has a backlog of 320,000 unprocessed applications for residency status, according to a recent Guardian article. [1] These people will be in legal limbo with no right to remain in the UK after June 30th if the backlog is not cleared.

[1] https://www.theguardian.com/politics/2021/may/10/eu-citizens...