Not everything actually requires a GUI, obviously. But anything that requires configuration, especially for controlling a hardware device, should have a fully functional GUI. I know Linux is all about being in control, and users should not be afraid to use the command line, but if you have to learn another bespoke command syntax and the location and structure of the related configuration files just to get something basic to work then the developer has frankly half arsed it. Developers need to provide GUI's so that their software can be used by as many people as possible. GUI's use a common language that everyone understands (is something on or off, what numeric values are allowed, what do the options mean).
Every 12 to 18 months I make an effort to switch to Linux. Right now I'm using Archlinux, and it has been a successful trip so far, except my audio is screwed, I can't use my capture card at all, I had issues with my dual displays at the start, and the is no easy way to configure my AMD graphics card for over clocking or well anything basic at all.
I'm not looking for a windows clone, I love that I can choose different desktop environments and theme many of them to death. I even like the fact there are so many distros. Choice is a big part of linux, but there is clearly a desire to get more people moving away from Windows and until that path is 95% seamless most people just won't. Right now I think Linux is 75% to 85% seamless depending on the use case and distro but adding more GUI front ends would, imho, push that well into the 90% zone.
GUI is not a dirty word, it is what makes using a new OS possible for more people.
EDIT: Good conversation all. This is genuinely not intended to be a troll post, I just feel it is good to share experiences especially on the frustations that arise from move between OSes.
I agree that having better GUI is a generally good thing and that most of us would benefit from it. However it's false to state or believe that Linux in its totality is bereft of this. Distros like openSUSE, MX Linux and Garuda Linux have put in considerable effort into offering tools that enable one to config a lot of stuff through a GUI. However, it doesn't make a lot of sense to complain about the lack of GUIs if you (or whosoever for that matter) don't use one of these distros. Arch has minimalism as one of its design goals, so you either have to find the binaries/apps/packages (or whatsoever) that allow you to config through a GUI or you're out of luck.
I was worried Arch would have me at the command line more than Mint or Fedora, but it hasn't felt like that. I'm using KDE plasma so I've got all the same tools (or can install them if needed). The GUI elements missing in Arch are missing in Mint and Ubuntu, Fedora, PopOS, all of them. I happen to be struggling through an audio issue right now. Can you find an OS that lets you change the Audio sample and bit rates without messing with config files ? This is basic function, and the PulseAudio and Pipewire have been around long enough for a GUI to have been created, but no, it doesn't exist.
I would agree that they're roughly in the same ballpark as long as you had picked KDE Plasma on Arch. Though I would argue that Mint and PopOS have a noticeable lead, though I don't think that point deserves more discussion. However, none of them come close to something like openSUSE's YaST or MX' Tools. That's why I deliberately mentioned them. Perhaps worth a watch for those wondering how Windows compares to different Linux distros GUI-wise.
I'm unfortunately unaware of any solution for that. Wish you good luck!