Mail Subfolder Notification

I recently opened a new mailbox with my own domain a through “costom mail” those mails now end up in a subfolder that I created with a rule.

the only issue that I have now is that I don’t get any notifications from those mails any more and since they are all work mails, I really need them.

i already found a lot of similar questions, but all from more than a year ago, did anything happen since then or is it still not possible to set up notifications for each Subfolder.

thank you for all your responses