Links on retired MTC resources

In My Dashboard I have a link on Office 365 Groups which decided to visit. Page returns

You do not have sufficient privileges for this resource or its parent to perform this action.

I guess this Space is archived now and closed for end users. That's okay, now it's Microsoft 365 Groups with another link and I is kept as a member.

But the question is how to unlink Office 365 Groups if it's not any more visible for me in any interface? More exactly, how to replace link on Office 365 Groups with link on Microsoft 365 Groups in My Dashboard (perhaps in other MTC places, not sure).