Apparently the UK can generate a report of where I travelled with my passport, so they can get that data but the systems are probably your typical government me

Apparently the UK can generate a report of where I travelled with my passport, so they can get that data but the systems are probably your typical government mess and there may be way to temporarily escape those checks. I think using a national identity card to travel would bypass those checks (apparently the trips where I used my national identity cards didn't appear) - maybe driving instead of flying could help as well but I haven't tried. I think the more time passes the harder it will get to evade that - and problems are likely to be compounded by countries running out of pensions money and the covid economic crisis - so I'd recommend just moving to a country that treat you fairly from a taxation perspective instead of trying to break the rules of a country which treats you unfairly.