This depends on the user. Personally I never minded the extra frame of latency.
And some of the newer Gnome desktops have even removed that, thanks to some tricky work by one guy, as I understand it.
I may have misunderstood the explanation but it seems to involve some nice timing getting all of the application buffers swapped just before the main GPU screen buffer swap. This gives applications long enough to draw updates, for the most part, and gets all updates into the next screen buffer update instead of the update after that.
Wayland has shipped on plenty of embedded devices with anemic arm socs as early as 2014
As I understand it the extra latency is relatively hardware independent, and caused by extra whole frames of delay from additional compositing layers. I expect an anaemic SOC to be slow, it's less fun when extremely high end machines are also slow.
Every time I pull a old system out of mothball and start it up I'm disappointed at how much less responsive the feel is of modern systems sitting right next to them.
... so long as you don't care about latency and don't mind a $3000 top of the line 64 core desktop feeling slightly slower than a machine from 20 years ago.
:(