Wayland is interesting, i've never used it, on paper exciting. Does Wayland only run Gnome, KDE or Weston. What about all the great WMs, they need xwayland added to the mix? That's my understanding, if so 'an X server running on top of wayland' sounds bloated and complicated. There are probably lots of old Tiny Core systems with software rendering only, please don't exclude these systems at the expense of something less proven, still in active development.
Great Wayland made it into *Core, default probably not for many years anyway. FWIW old hardware with the right software in present TC does not lag or tear. Running modern Gnome would cripple this hardware, it's easier to avoid the bloat than figure out a workaround.
pq5190362 If you're serious then provide numbers and a test ISO, as already suggested. To be default it needs to work across all hardware and provide the same functionality or better than presently offered. Creating a TC respin is an alternative, develop it over a few months and release something fantastic.