(I’m the maintainer) I do use the messenger bridge and it works for me, without disconnection issues.

Yes, it’s totally fantastic, and I’m not biased at all when I talk about it. xD

It does support a crazy amount of networks (it uses libpurple which is the lib of pidgin), unfortunately it lacks modern features and even groups don’t work that well. I actually started to work on slidge because I was fed up with spectrum2’s limitations and realised that spectrum2’s maintainer think, like many others, that XMPP is dead…