Earlier quoted context omitted.
It really is nice once managed - it's hard to explain, but everything is very smooth . I would guess the display synchronization/mixed refresh rate support is to thank. Some Electron-based things and Steam are the main holdouts I've noticed. I suspect the Electron things at-large will be sorted out before Steam... they simply need to rebase while Valve has to modernize their libraries (ie: vgui)
Steam recently underwent a large GUI refresh, vgui has officially been retired.
I was very hopeful that the redesign would be sufficient; it was not.
Thank you for the information, though - important to be current