I don't think what side M moves you do matters much if at all for CFOP, or ZZ
but for some petrus algs for example M' U MR U R' (you do M and R simutaneosly)
lefty is objectively better.
and for roux it is obviously better, as during second block not having to regrip your main hand during M...
magic is MUCH MUCH more predictable and that's prob why it was removed,
also the solving method if you can even call it that is uninteresting and extremely short.
the clocks method is also kinda stupidly simple but at least a little less dumb.
Im making fun of his logic explaining the falisy it isnt MY logic im showing why HIS logic doesnt make since,
he said ZZ was a ripoff of cfop because Cfop was OLDER,
so by that logic LBL is a ripoff of CF because CF is OLDER
Cfop is just a ripoff of lbl which is a ripoff of corners first so obviously corners first is the best using your stupid logic,
also I didnt know you could combine every bad argument and put it into one post hmm...
If you use bottom edge f2l pairs for Last side than the only step that requires a decent amount of thinking is 223 and because it can be done in inspect that doesn't really matter, the real issue with petrus is does the efficiency make up for ergo and make petrus have higher ((total)) tps...