I attended a user conference recently and I may be remembering this wrong, but I believe I heard a speaker from ESRI say something along the lines of 'get out of the habit of storing your data in feature layers' during a workshop for ArcGIS Enterprise admin.
Again, I have no idea if this is what I actually heard, but it's been on my mind for a while now and I figured I would ask the community. Our organization does not have an enterprise agreement, so it's probably not relevant to us yet.
Thank you