There is no Europe wide long stay non-working visa for UK citizens. 90 in 180 days is the Schengen visitor option, no?
90 days within any period of 180 days visa free. Everything else is bureaucracy …
https://uk.diplo.de/uk-en/02/visa-information-2441822
90 days within any period of 180 days visa free. Everything else is bureaucracy …
https://uk.diplo.de/uk-en/02/visa-information-2441822