I use Strawberry too, because it's a Qt app and it integrates very well with my Plasma desktop, and because it supports Subsonic/*sonic protocol/API (I'm using Gonic as my *sonic server).
And I was able to achieve quite nice look/color-scheme with my Strawberry, so it looks very good on my desktop too 👍
Sounds familiar.
I'm using TBS octa DVB-T(2)/DVB-C tuner card, which is streaming the channels to my LAN (by using Tvheadend, Mumudvb, or Astra), but I was also frustrated about compiling the driver for it whenever there was a kernel update (https://github.com/tbsdtv/linux_media). Eventually I created a Debian virtual machine and configured the tuner device available for it by using AMD IOMMU and Qemu/KVM PCI pass through. It has worked very well, and there's no need to update the kernel if you don't care about the security and vulnerabilities ;D
The card I'm using: Multimedia controller [0480]: TBS Technologies DVB-S2 4 Tuner PCIe Card [544d:6178]
It's possible to certify Linux as "an official Unix", evidence: https://en.m.wikipedia.org/wiki/EulerOS That particular Linux distro's Unix certification has expired, though.
I think this was fixed on Plasma 5.27.x onwards. There was major rewrite of display configuration handling, that fixed these issued for me at least.