Full screen tile into 3 windows

I have a m1 macbook air, I love the tile window to left and right on full screen. I have an ultra wide samsung g9 monitor, and i was wondering if there was a way to tile window into 3! left middle right. I dont want an external app because they dont work as well as apple's built in fullscreen (for example i can full screen 2 individual videos on each side if i wanted to. but was hoping i could do the same with 3! so i can have the main display in the middle like a tri monitor since this monitor is really big! :) Thanks!