I dont see how an outside observer can see that both mails lead to the same mailbox, but I’m not really an expert on the subject. They can almost definitely see that they both go to mailbox.org, but beyond that it’s mailbox’s problem where to put the mail AFAIK (pls no quoting)
For what its worth I also have a pseudonymous mailbox.org address I use with the same inbox.
I have firstname@lastname.tld and a firstname.lastname@mailbox.org address.
What I do is, on mailbox.org I can filter incoming emails by the recipient and filter one of them to a subfolder of the inbox. It’s not exactly the same, as two seperate inboxes but close enough for my use case.
gnome + paperwm, on a laptop I found there are so many things that are a headache to configure, like battery alerts, bluetooth, wifi that it’s just a hassle for what amounts to like half an hour longer battery life
Ah thanks thats not as bad is I was fearing but not great