IIRC I had to keep xsettingsd running in the background for my system GTK theme to be applied to Flatpak apps so maybe that’s what you need?

Sometimes it’s plug-n-play and everything works great. Sometimes you press the update Nvidia drivers button on your Ubuntu work computer and then need to tell IT you bricked your OS. YMMV

No worries Mickey Mice! Hopefully you won’t face any more big hardware issues after that ^^’

Good luck in your Linux journey! :)

21:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4352 802.11ac Dual Band Wireless Network Adapter (rev 03)

It’s probably related to this recent issue

In my experience Broadcom on Linux is a bad omen, second only to Nvidia. If you can, I’d recommend switching your Wi-Fi card for one that has better Linux support (e.g. “TP-Link Archer TX3000E” or anything that uses an Intel chip inside really since support for them is handled directly by Intel and integrated into Linux’s source code). Good luck! :)