I currently use Debian for my personal laptop. Any advantages to moving to OpenSuse Tumbleweed?
With Tumbleweed you have much more up-to-date packages than with Debian stable. Probably even more than Debian testing a lot of the time. I initially tried it because I had bought a laptop that Debian wouldn't even install on for some reason, so I think it's fair to say support for very recent hardware should be better on Tumbleweed.
The downside is - to me, at least, that there are frequently large batches of updates (hundreds of packages) that take relatively long to install, make reboots (or at least a logout-login for your desktop session) necessary, and on occasion break something. If you have an nVidia GPU (like I do, sigh), every now and then the kernel will be so recent they haven't updated their drivers, causing Xorg to fail.
When something breaks, thanks to btrfs and snapper, one can roll back to the most recent working state, and for me at least, trying again a few days later tended to work again[1]. But it is more "exciting" than life on Debian stable. ;-) On the recent article about OpenSUSE Leap, one user commented they switched from Tumbleweed to Manjaro (an Arch-based distro) which offers many of the same benefits but has worked better for them.
There are differences between Debian and OpenSUSE in general, which I'm not sure I'm the most qualified person to discuss.
Last but not least, the community on the OpenSUSE support forums is very friendly and helpful in my experience, although I rarely have a need to go there.
[1] You can do that with Debian, too, of course. But OpenSUSE uses btrfs for the root filesystem by default and has snapper in the base install.
The Arch wiki has a decent article about Snapper: <https://wiki.archlinux.org/title/Snapper>, though note that the OpenSUSE installer makes it easy to set up the btrfs subvolumes.
When I first installed tw, i tested the snapshot functionality first. At the very least understand how it does not (by default) snapshot /home and how it takes an automatic snapshot after rpm (zypper) operations.
Once there was a wifi issue that borked a lot of our machines and very few people actually knew how to rollback or had ever tried it before. A crisis situation is not a good time to test these things. This is especially an issue because as you'll see in the link above not all tw installs will have snapshot support. One major determinator is disk size. It won't get enabled with less than 20gb root space.
TDLR: If you would like a rolling release with a more "offical" status than debian testing and more comfort/quality of life/tests/out of the box features than arch, this seems like an option worth trying.
You can easily run Debian on 10 year old laptop with a rotating disk. You'd probably don't want to do that with Tumbleweed.
It fully depends on your preferences what you count as an advantage.
Rolling distros are great if you get a brand new laptop with modern HW and fancy features (AV1 encoding, thunderbolt/USB4, keyboard RGB, OLED displays with HDR, variable refresh rate, etc) that require you to be on the bleeding edge to make use of them.
Debian/Ubuntu stable is more than good enough for 95% of the average users, especially, on such old machines, you're better off with Ubuntu/Debian stable than bleeding edge rolling. You don't get any benefits from rolling on such old hardware for the average user but get more risks from potential issues from being on the bleeding edge.
Ubuntu distros exist that take KDE to the bleeding edge but keep everything else on the sabe branch, you don't need to go rolling distro for that.
potential issues from the bleeding edge on 10 years old laptops ? Exceedingly rare (I have a 10 years old laptop on a bleeding edge distro)
Daily driving Tumbleweed for 2+ years.
I would; that's 2 extra commands that install an additional (unofficial? OBS is like the AUR or PPAs) repo and then install stuff from it, and you have to know to run them at all. Like, it's good that it's in the wiki, but compare the process for a new user:
OpenSuse:
1. Open firefox, go to youtube or whatever.
2. Get error message about unsupported format.
3. Do a web search on that error.
4. Hopefully stumble across https://en.opensuse.org/Codecs and thence https://en.opensuse.org/SDB:Installing_codecs_from_Packman_r...
5. Run the needed 2 commands to install codecs
Debian:
1. Open firefox, go to youtube or whatever.
(There is no step 2)