No, EASA has actually not agreed to that. The only exceptions is for student pilots who did their exams in the UK prior to January 1st. Some local authorities do see that as a blanket approval to accept all exams, but that is actually not in agreement with EASA guidelines at this time. Local authorities do have a limited leeway in interpretation of rules, however those could be open to legal challenges, not that i see a huge chance of those.
Current EASA guideline is:
The UK CAA is developing a simplified application and validation procedure for recent holders of UK-issued Part FCL licenses. Does EASA plan to implement a similar application and validation procedure for recent holders of EASA licenses?
Source: UK CAA
For the time being, there is no plan to develop a simplified application and validation procedure. Accordingly, any validation or conversion of a UK issued license should be done in accordance with Commission Delegated Regulation (EU) No 2020/723