Wifi isn't quite solved on any platform. It is also quite hard to decide what solved really looks like!

My wife and I have identical HP laptops. Her's runs Arch (as you do), with KDE and mine runs Kubuntu 25.10 at the mo. Both use NetworkManager.

I look after both.

Randomly after wake up from suspend, wifi may or may not still be working. When I say random, I mean after a kernel update or the wind changes direction. I think wifies lappy is OK now because I seem to get a lot less "support" calls for the last few weeks.

To be fair, there are a lot of moving parts from a lot of bits of Linux involved in a modern distro these days.

When I say hard to decide what solved looks like: if Samba or SSSD crap out, is that wifi's fault or the kernel/driver? This is exactly what Windows has had to solve over the years and I do note things like credential managers and mounts that manage to survive disconnects being bolted on to Linux.

All that scrappy stuff needs to be passed on to the BSDs too. Getting a laptop with file systems that come and go, with a dickey clock tick and networking that comes and goes and VPNs and all the rest.

Getting all of that to work is quite a job.

Sounds exactly like my mom's Windows computer. Flaky wifi/power issues are not a Linux problem.