In Omarchy Quattro, you can easily add 3 finger swipe between workspaces by hitting SUPER+SPACE, typing and selecting “Input” and adding the following:

hl.config({
	gestures = {
		workspace_swipe_invert = false,
		-- optional extras that people usually keep:
		-- workspace_swipe_distance = 300,
		-- workspace_swipe_create_new = true,
		-- workspace_swipe_forever = false,
	},
})
-- Bind the 3-finger gesture
hl.gesture({
	fingers = 3,
	direction = "horizontal",
	action = "workspace",
})

They gave you the 3-finger gesture part, but to inversion of the swipe direction was the part I was missing. There are other options you can tweak in the config/gestures block, too.