I have hit a point where I've moved my browser from running locally on my laptop to running on a hetzner dedicated server over VNC because it performs ridiculously better so "readily available" is apparently an unfortunately variable claim.
I would note however that my laptop is not entirely recent and I'm using firefox and my big pain point has been React Native Web apps like web twitter. So you're likely still mostly right, and the question inevitably becomes "how much mostly is enough for any given application".
Does some impressive compression tricks that results in it being remarkably snappy.
You may prefer to run Xvnc directly rather than use the wrapper script, depends how you want to set everything up.
I will be honest here that my setup is not properly automated yet because it's inside a jail on a FreeBSD install and the underlying box gets good enough uptime that my current half-assed approach hasn't yet annoyed me into finishing it.
I would note however that my laptop is not entirely recent and I'm using firefox and my big pain point has been React Native Web apps like web twitter. So you're likely still mostly right, and the question inevitably becomes "how much mostly is enough for any given application".