This was years ago - but I feel like the solution for CGNAT at the time required a static, and we also implemented DDNS for their TLD. It definitely wasn't T-Mobile. It took some time to find someone at the mobile ISP who understood what we needed, and what options existed.
If you don't have specific application support needs, Debian based distros like Ubuntu/Mint (based on Ubuntu) are good for a first-timer. You won't have all the GUI management stuff like you get in Windows. You may find Arch a bit more challenging.
ISP may offer a static IP, and/or help bypassing CGNAT if either are useful. I've done it for a 5G failover with VPN, with the gateway in passthru, and a firewall behind it. At a glance, it looks like the FX4100 supports all of this
I've used APs to mesh (5ghz) two buildings together, with a switch on the far side of the arrangement as a bandaid prior to cabling work. APs and switch in the bridged building were managed, minimal load, worked well enough. I've also had good luck with UBBs, though these were always mounted outdoors, and at 1km or less. PoE in both examples. Other parts of the networks in all cases were a mishmash of different vendors.
I wouldn't expect the meshed APs to care about what's on the other side of them, either, but haven't tried with unmanaged devices/different vendors. I also wouldn't expect high performance from 5ghz meshing, but depends on several factors. UBBs definitely don't care what's behind them.
We already know that autism isn't caused by vaccines, and if anything, the reverse is true. Yet we have a guy with zero medical background peddling this and antivaxxer nonsense at the top of HHS. If you still can't see a connection between stuff like this and social darwinism/eugenics, you can start by looking at someone he wants working on this. He worked with his father, and they experimented on autistic children. His father lost his medical license over it.
Here's a link - on Fox of all places - about RFK and "wellness farms" for various things, including the ADHD stuff you had trouble finding. "RFK ADHD work camps" does the trick.
When some rich guy comes outta nowhere and tell you that vaccines are bad, and folks with addictions, mental disorders, or happen to be a bit different from most just need to work on a farm for a while, your first thought shouldn't be "wow, he's really trying to help people." If you're still stanning this jackass after all of the above, I don't know how else to help you, but I definitely know you haven't worked very hard on answering your own questions above. Maybe a farm is hiring, IDK, but I'm done here.
Autism and ADHD are naturally occuring neurotypes. It's like trying to pray the gay away, and they know it. Consider this and the context in which it's coming up - immigration, gay/trans fearmongering, a sudden and completely wrong approach to "curing" autism. This guy isn't talking to the best and brightest in the field for a reason. History may not repeat, but it rhymes. There was a famous book burning. It was LGBTQ+ research/materials. Look into who Asperger actually was. They're coming after queer and disabled people first.
I believe you need to be on kernel 6.12+ for the 9070 XT. Mint 22.3 will support that.