> My main issue with Dex is the perennity of the system. Is Samsung going to keep pushing this, or will a native android version takeover? Or maybe at some point they'll say "well that didn't work out" and abandon it completely?

Agreed, this is also a worry of mine. In fact they did exactly this with Linux on DeX.

> Every year I get closer to being able to do my work completely off a phone. I also think 8GB of RAM is plenty.

Remember that Android devices don't do swap. What I see with DeX is a LOT of tab refreshing when it starts running out of memory. Which is really annoying when you're trying to do actual work (e.g. going to an Excel sheet to look up something, but then going back to the browser to continue filling in a form, but in the mean time this has reset due to a forced page reload).