This looks like an EliteBook or ProBook (they're the only ones with trackpoints, the chassis looks most similar to the 845 G8/G9, but the logo and display looks more like a ProBook - it's not using the classic not the premium HP logo). Both these models which typically have 2 x SODIMMs, making it one of the better options for thin and lights for upgradeability. HP never has high-res panels for their business laptops, which is one of the reasons I don't even consider them (the other is that they usually don't have S3 suspend support, but for an officially supported Linux version, I'll assume they're at least going to spend a bit more time making sure it can suspend properly).
For the price, it seems fine, although I'd probably go for the similarly priced Starlabs Starbook Mk V if you were ok w/ FHD: https://us.starlabs.systems/pages/starbook (it has a 5800U)
Or bite the bullet w/ 12th-gen Alder Lake P and go with the latest Framework: https://news.ycombinator.com/item?id=31433556
Personally, I'm looking most closely atm at the newly announced (but not yet shipping anywhere) Asus Vivobook S 14X OLED (M5402): https://www.asus.com/Laptops/For-Home/Vivobook/Vivobook-S-14...
* 45W Ryzen 6900HX (I'll assume RyzenAdj support will come eventually https://github.com/FlyGoat/RyzenAdj/issues/197)
* 8GB DDR5 soldered, 1 SO-DIMM so up to 40GB of memory
* A ridiculously good display: 14.5" 2880x1800 16:10 120Hz OLED w/ 550nit brightness, 100% DCI-P3, HDR500, Pantone validated (and reportedly no PWM flicker on this generation)
* Decent ports - 1xUSB 2.0, 1xUSB 3.2, 2xUSB C, HDMI 2.0, 3.5mm combo audio jack
* 1.6kg