I did a fresh install of Kubuntu 22.04, I think about a year ago and before that, I think I had 20.10.
20.10 was annoying. Almost every time I logged in, the sound card was not present. The sound icon?
I logged out and logged in and it worked.

Kubuntu 22.04 works very well.

VLC works fine.
The same bugs with Dolphin are still present.
I often update LibreOffice manually and the same bugs are present

No issues whatsoever. Hardware apparently plays a major role.
What's laughable is the negative comments from those that don't even run Ubuntu.

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I did the 22.04 upgrade from 20.04 on two machines recently: (1) a new System76 Gazelle and an 11-year-old Pogolinux desktop. Both upgrades were painless, which sometimes has not been the case with Ubuntu. Had a few minor software items to figure out, but otherwise I am happy with Ubuntu. Still, my main machine (the Pogolinux), which dual boots to Debian by default, is my preferred daily working platform.

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Thank you beachboy2 for your suggestion: it was spot-on. Now the scanner is working in my Slackware64-15 box.

I meant to add that Ubuntu 22.04 has my scanner working too. I am a happy camper now. Cheers!!

I haven't had any major issues with it, at least not until I bought the wife a new lappy and commandeered her old laptop. I installed *buntu on it (yes, more than one of the flavors, including Mint!) and noticed that the installation was horribly slow. So was anything related to HDD activity (yes, a mechanical HDD, it was a budget 'gaming' laptop bought a few years ago by my late brother). It's an HP 15-ec0095nr, just so we have a reference point. Yes, at first I thought, "ugh, it's gotta be the HDD!" After all, it's a 5400 RPM drive, but I tried installing Endeavour OS, Manjaro and even Fedora. All of them were pretty snappy. So I was (still am) completely buggered by that honestly.

I remember she had constant issues with disk usage at 100% at times, and it would last for minutes and minutes and minutes (approaching an hour at times). She didn't always update it, so that may have had some bearing on it, but the tricks I tried to stop the HDD from constantly spinning didn't seem to work - at least for long. I ran diagnostics on it using a rescue usb disk, and it passed the SMART tests with flying colors, but for some reason, *buntu just hated that drive. I'm still experimenting with it, I'm throwing a clean install of Win10 on it at the moment.

Sorry, I ended up writing a novella instead of just a quick answer. What really drew me to Ubuntu was that things just worked for me. And when they made Ubuntu Pro free for up to 5 devices, I was doing a fair amount of work with it and never really had too many issues. I'd get the occasional "___ process messed up, do you want to send a bug report?" or other, but I ended up ignoring them. They happened a lot at first, but eventually went away altogether. With the experience I had with the not-quite-yet-old laptop, I'm rethinking that. I'll keep it on VMs, but I think I'll move to Fedora or an Arch derivative for any production use.