I had a SailfishOS phone for four years; an Xperia XA2+. The operating system was wonderful, and being able to run Android apps when there was no alternative was a good way of filling in the gaps in the Jolla store.
However, as I've got older I find large phones more and more unwieldy, and I couldn't find a small enough SailfishOS phone to switch to. I'm now running LineageOS on a Jelly Star. The form factor is perfect for me.
Would I return to SailfishOS? Absolutely. But there'd need to be a small phone in the line up for me to migrate to.
Can you use teams/outlook on your jelly star? I've been wondering how bad the ux could be in real world use.
Which version of LOS do you run exactly? Did you compile it yourself, or did you pick a pre-made version? One from XDA?
I ask, because the device is not officially supported by LineageOS, but if it works well with a different approach it would be an interesting option for me as well.