Why all this moaning?
The UK left the EU and as a consequence left EASA.
EASA offered membership to the UK without voting rights but with ECJ jurisdiction for disputes ( like Switzerland / Iceland / Liechtenstein ) but refused.
Many UK operators are getting Maltese EASA AOC's like Titan / TAG / Maleth / Flexjet and others to avoid 3rd country operator permits.
EASA only recognises EASA Licenses to operate aircraft.
UK CAA license holders had until the 31st Dec 2020 to do a SOLI and then get a UK CAA license back ( with delays ).
If you missed the deadline you can apply for an EASA conversion like with Transport Malta, all you need is:
Copy of your ATPL results
Initial EASA Medical
LST on the aircraft you currently fly ( check must be done within 7 years of your last EASA IR renewal ).
Am I missing something here?