I don't think it deletes for anyone on an instance different from you so you being on world means that it will always show up for me who is on sh.itjust.works
The closed source ones were good enough for quite a while; it was amd's closed source ones that were mediocre.
Course now that wayland is around Nvidia bungled their support for it ( trying to force their standard rather than what had been accepted by others), and Amd's open drivers have been solid the entire time afaik.