Tell your team to learn hard language to translate... It will help in masking lip readers from other team that dont know that language, sacy told me in vct champions 2022 he read fns lips saying "we rush A while yay tries to get pick on C" then he told saad to push C to get yay lacking...
Also if you drop comms video which most team do, They wont understand what you're saying. Works best with languages with lots of slang like portuguese (the real one from brazil) . Rumour has is that mixwell watches comms videos from other teams to try and anti strat them.. really shameless
Also promotes learning which is always good
+Helps with your players going to play in other countrys in the future