European Union has implemented a late - but necessary set of rules today requiring foreign actors (eg Americans, Russians, Chinese) to register and mark themselves transparently if they are operating within political sphere of the EU:
https://ec.europa.eu/commission/presscorner/detail/en/ip_23_6453Quote
Registration in a Transparency Register: entities carrying out interest representation activities on behalf of a third country will have to register in a transparency register. Member States will be asked to establish or adapt existing national registers for this purpose.
This follows a law that US has in place since 1938 - FARA -
https://www.justice.gov/nsd-faraNeedless to say in this several other countries implemented similar laws (eg Russia) which are somehow criticized by certain unscrupulous actors. I saw people complaining about persecution of unmarked foreign influence agents (eg USAID) according to recently enacted Russian foreign agents law.
remember that FRF woman from Washington complaining her foreign agent career got cut short or something?