in time, just finished few flights in XP 
XP is really good and can be on par with MSFS or even better in few areas. I can mention few if interested.
the only reason imo, to have more than one civi sim in a stable, is the availability of modules. there isnt single sim which usually has all the planes one is interested in. this is the case e.g. also for you @PaulRix , as there isnt any 650 for MSFS.
the only thing which is must-have for me in XP are orthos. I just cant fly without them anymore. these can be user generated for almost any part of the world. or there are pre-made areas like USA. it takes some time to make them, sure, but they are worth it especially in XP12 with its new lighting.
with orthos in place the graphics border between MSFS and XP can be shady
somewhere in South America. XP12 + X-America (free) + orthos (free).
few more pics here
X-Plane 12 Screenshots 2022 - Screens & AARs - Mudspike Forums
and ‘globe’ for XP airports search
Gateway Scenery Map (cleverest.eu)
but agree with what was mentioned above, for a quick vfr ride it is really convenient to just open the MSFS, click the globe and off you go with all the satellite imagery just downloaded as you fly.