Update from support:
“I’m sorry that the issue with the approveByToken function still persists.
Unfortunately, we are unable to provide an ETA when it will be resolved, however I have requested an update an prioritisation from our developers.”
So every site that uses token approval has been broken for over a month not allowing users and customers to create accounts unless site owners heavily circumvent around the API.
Many site owners are properly unaware this issue is even occurring because there’s no public notice and many are probably putting hours into refactoring their code thinking it’s an issue on their end.