That sounds absolutely nothing like an old school modem
At first I thought it may have been because of this CVE, but if it has been like that for a month, then it's something else.
Switched over to wayland about 4-5 years ago, have run into a couple of problems dealing with theming, fractional scaling and of course nvidia, but on the whole my experience has been without major issues.
I actually found all the subsonic clients to be quite heavy on my battery, so I just stuck with the one I liked the best.
The word "tiger" is just a massive trigger for me. I assume the expression and similar ones are supposed to evoke thoughts of virility and prowess but I just find them awkward.
Did you check their support guides https://support.yubico.com/hc/en-us/articles/360016649099-Ubuntu-Linux-Login-Guide-U! ?
Vic 20. I used it to learn basic programing and play games.
Redoubled my efforts to selfhost more services, abandoned reddit and generally started using the www less.
It gave me massive munchies and not much else.