Ah yes, sailfish is actually pretty usable. (Unlike Ubuntu Touch, tbh).
I've used it in the past on my Nexus5 for some years.
However, they are still not 100% open source and they're too much into the AI-Hype as of recently (Mind2).
Also, I'd like to have more official ports. It's such a hassle to be dependent on that one guy who maintains that port for your device...