Hi Dw,
I've done some GTM/GA4 testing on a demo version of swift and I have some issues getting the remove from cart event to fire.
As you can see in the video all of the other events are firing as they should.
It seems that after you remove an item, the only fired event is the view cart event, when the removal has been completed.
I know it is not the most crucial event of them all, but I suppose the intention is for it to work.