LiefLayer: Dell are only nvidia and intel.
3 of my last 5 machines were Dells. I only buy AMD graphics (and by coincidence, also only AMD CPU). My current is a
Dell Inspiron 17" with Ryzen 2500U and Raven ("Vega Moble Gfx"). It came with a sucky 1TB drive and 12G RAM, which I doubled before I even powered the machine up (and converted the HDD to SSD while I was at it, and later added another TB as NVMe). I'm not sure if it's just my machine or all machines of this model, but the keyboard has issues so I find it hard to recommend this machine. I got around the biggest issue by physically unplugging the touchpad (not a big deal for desktop, since I always use a mouse, but on the bus it's hard -- I use my DualShock 4 as a touchpad now). My previous two died unexpectedly (one due to chronic water damage to the display finally killing it and one just decided to stop powering up). I used both of these deaths as excuses to upgrade my machine rather than fixing the old ones. Since my previous was basically the same model with older chipset, I might end up transferring keyboard and/or touchpad to my new machine to see if it works, but I think it's a BIOS/chipset irq routing initialization issue.
HP also makes a lot of AMD machines. My last HP Pavillion had a bug where amdgpu graphics weren't initialized properly in the kernel. After waiting a year for AMD to fix it, or at least acknowledge it, I chucked that machine and swore to never buy an HP again (it also had a broken keyboard, but i8042.dumbkbd=1 fixed it (and disabled the LEDs, but who cares?)). Look at the AMD site for a list of laptops; those are pretty much the only ones (and I wouldn't recommend a "gaming" machine, as they are usually just designed to be plugged in).
I also owned a Lenovo. Also never again.
Toshiba used to make a lot, but doesn't seem to any more (or I'm not looking at the right place). Back when I didn't care about 3D, Toshiba was my go-to brand. Once I did, I went cheap, though, and ended up getting Gateways and the machines I listed above. The only ones that felt like they had good battery life were the second Gateway I got (AMD A8 I think) and my current machine (maybe because of the SSD).
Oh, and relating my laptop with the OP:
1. Make sure OpenSuse has up-to-date drivers for RAVEN.
2. I use mine for all sorts of stuff. Lots of gaming. No photo/video editing.
3. I value resolution over other issues. I can't say how this one's display fares wrt your requirements.
4. This has a built-in 42Wh battery. I hate built-in batteries. This machine lasts pretty long on a battery, though. If you need more, you're SOL unless you can find a third party vendor with bigger compatible batteries. Also, I can't do my usual power-saving measure of suspend-to-disk (and never use suspend-to-RAM, so I can't say anything about it), but it's been 6 years since I had a machine where that worked, so I've learned to live with it.
5. One issue with both 17" Dell Latitudes I've owned (they're the same physical case) is that if you put it on a hard surface with one of its feet off the surface, the case can bend enough that the built-in DVD drive starts giving errors, which, even if you don't use the drive, can cause boot hangs & such. Doesn't happen as often with my new machine, mainly because I'm more careful about it. On my old machine, I just pulled the drive and left a gap. One of these days I'll buy a blu-ray replacement drive and see if that works.
6. No backlit keyboard. My last one may have had one; I don't like them myself so I don't remember.
7. Ryzen + Raven. You're getting an APU if you care about battery life at all.
8. Ethernet: yes. However, it's 10/100. Why they don't put gigabit ethernet on every machine made in the last decade I don't know. Probably saves them 5 cents in production costs. Also contains ath10k wifi and Qualcomm/Atheros bluetooth. All supported out of the box on Linux.
9. Opens easily enough with a small phillips and prying tool. HDD, NVMe/M2, 2 RAM DIMM slots, all easy to get to. The rest is harder.
See the link for approximately what I paid (I think I got it on sale for less). You'd probably be better off asking Dell directly and seeing how much you'd end up paying for tariffs & taxes.