I'll preface this by saying that I don't think electorialism will be our liberation, but it is a tool which is available to us.
Reform (fash) or Restore (broke from Reform for not being fash enough) could likely win the next General Election and things would, in the absolute best case, continue on a very dark trajectory. A Restore policy is "re-migration" (yes, it's as bad as it sounds), so the worst case is much worse. The Greens are lib of course, but they have some decent policies (anti-NATO, anti-imperialist, anti-racist, anti-landlord, pro-trans) and are the leftmost party capable of winning a General Election (Your Party is cooked, and the various socialist and communist parties are very small). So, for now, I support them. I'm aware that many of their good policies will magically evaporate if they get into power, but they are still the least bad option by a significant margin.
I'm getting involved in some much better orgs already, but I still have spare time that I'd like to put to use. So, I went to a local Green Party meeting recently with the hope of taking part in some local organising to raise their profile and perhaps meet some comrades who feel similarly. They had some vegan food options, and I didn't get any overt transphobia, but there were was casual ableism, authoritarianism apologia, and very little talk of actual substance. It certainly didn't seem that anyone there was a comrade and, overall, I'm a bit put off by them.
Do I suck it up and work with them anyway? I can spare the time right now so it's not like it's taking away from anything better. But they're very lib.
Do you engage in any electorialism, and would you recommend it?
I dont think OP is German, the parties they mentioned (apart from Green) are British. As far as I know, there's no connection between the German and British Green parties.
First of all, there is a connection: the British Greens are affiliated with European Green Party, which the German Green Party is a member of. Not just any member, the most prominent one.
Secondly, literally all the circumstances that led to to the German Greens being very much an imperialist, reactionary and in general wholly counterproductive force, applies to the British Greens as well. If they ever get anywhere near actual power, they will move their supporters right, and they will use them to crush any left dissent. If OP manages to funnel anyone to the British Greens, they will turn this support against them, and people like them, and anything they stand for.