>>41789570>>41789630Pretty much
You just attempt to teach new move, then inmediatly move down, and due to the lag it should work
Don't know the timing, but it essentially means that every Pokemon in the Galar region has the TM/TR compatibility of Mew
No idea how does online handle this, but considering that early this morning it was banning players for being too good, then I assume it won't even bother to check properly