+1 for FS multi mode fiber, it’s worked well enough for me.
I know FS’s SFP-10GMSR-85 (Intel) (formerly SFP-10GSR-85) works in my Mikrotik CRS317-1G-16S+, but don’t know either way about the Ubiquiti transceivers.
I’m afraid I dont have any real experience with fiber keystones one way or the other.
I will say that if you have the space in the run or are opening up walls, help out you’re future self and run it in some smurf tube, though obviously that’s not always possible without massively expanding the amount of drywall work.
Tax breaks for the farmers working the fields, or tax breaks for the international corporations and land speculators that own nearly all the fields?