Take it then through central Europe. CZ and SK take some routing skills but it is really nice to bike here, don’t worry about Austria the bike infrastructure is top quality. Hungary is good too but it is really boring (too flat). Don’t trust that Romania and Bulgaria are backwards in this regard, it is doable (I would say it is bit worse than CZ and SK).
I wasn’t in all countries I mentioned some of it is from friends who were there. Maybe mention it in bikepacking/touring community (it is on lemmy.world so you will need another account) someone will give you more hands on advice.
Yeah politic is messed right now in Hungary and Slovakia in this regard. But I don’t think that it sets general feelings towards lgbtq. As a tourist you should be fine, I had really weird encounters in really rural area in Romania but never felt like I was in danger. Just to be safe I would put the rainbow flag down but that’s all, lots of people are progressive, even in those countries, and assholes are everywhere.
Hit me up if you will ride through Czech Republic, I am not active much on this account so - @plactagonic@sopuli.xyz (my second lemmy account); @plactagonic@f.cz (mastodon)