Is user mommyceline known or susperious?

Hopefully you don’t think I am paranoia, but here is my reason to ask.

I opened a thread Migration Assistant for upgrade from 0.5.4 to umbrelOS 1.4 and this user first flagged it as Hidden and than with a personal message I got an answer including a link to an external address which ends with …web.app. The user mommyceline has a hidden profile.

Is this concerning?

In your original thread the message that mommyceline posted likely contained a malicious link and was automatically removed. I would not click anything from that user, it is very likely malicious.