Nope, I just deal with OneDrive support constantly and I can say definitively that it's pretty decent at what it does, and if the links you are getting or sending are not working, it is your fault.
If you want to bitch about something substantive, how about bitching about how 365 has like 20 admin panels that are opaque about what they are and what they do, terrible menu layouts in those menus, etc.
That stuff is a very real problem.
Some boomer who can't figure out how cloud drives work is not a real issue.