Looked up how to “close tabs to left” on Edge* since there’s a button for right but not left. Click MS help link, the dude legitimately recommended moving all the tabs backwards then closing to right.
He also said you could do control click on them and “close selected tabs” which worked… decently. Still mad there’s not a button for closing tabs to left though.

• this was on my education laptop where I can’t use Firefox and Chrome doesn’t save cookies so id have to log into everything every single time for ‘safety’