XTowncuber
Veteran
New stuff for feet: maybe OLLs and PLLsSo you want to remove One-handed as well?
Different algorithms are used. Many people learn algs for feet solving.
People who do not have hands are already allowed to solve with their feet during the 3x3 event - not sure what you're getting at there.
New stuff for OH: Definitely a lot of PLLs probably some OLLs, if you're fast then COLL and then maybe some 2GLL and heck why not throw in some WV or ZBLL, oh and also there's this special method for it called ZZ. Also OH turning/fingertricks are more distinct between solvers than feet turning/toetricks.
Thus I think that OH is NOT a mundane copy of 3x3.