Your complaints are valid, but I genuinely think the proportion is a little bit exaggerated on some of these because most people wouldn’t face a lot of these issues. Also I completely agree with LadyCajAsca, I just want to address most of the points you mentioned here.

I don’t use FreeCAD, and like I said, it falls under the more niche uses because that’s not something most people would need, but your complaint is completely fair, we really lack in some software, even if said software might not be necessarily related to Linux. And even if most people don’t need nor use this type of program, it’s something that hinders Linux potential and adoption. On the other hand, Linux also has stuff like EasyEffects which is amazing and that afaik has no equivalent on Windows.

Wayland development is slow and full of developers arguing over simple features for years.

Fair, almost every time I looked into Wayland PRs and feature requests it’s always filled with endless arguing, but for the most part now Wayland is ready and every major distro is either moving to it, or have already moved. So even if the development is not the most smooth thing, Wayland is in a more than good enough state right now.

Flatpaks still have a lot of issues

Also fair, I don’t keep with Flatpak development, but I have faced issues with Flatpak apps before that I never saw resolved, like VSCodium and Zed don’t see my Brew install, so things I use in the terminal aren’t available there, which made me have to layer both packages on Bazzite. I also faced issues with Heroic’s Flatpak and playing pirated games that require Steam because of a limitation in Flatpak, so I now use the AppImage, and Blender doesn’t have HIP support on Flatpak, so I now use the Steam version. That being said, most Flatpaks just work for the majority of people. I myself use a lot of Flatpaks that I never had to mess with.

When Linux breaks, it’s nice we can look into where it failed and fix it, but this requires users to have some proficient technical skills

For the vast majority of distros I completely agree, but that’s where stuff like Atomic distros come in, it should make that a non-issue for the most part. Also, stuff breaks on Windows too, I have faced issues on my Windows installations multiple times that I couldn’t find a fix for, and when it was something I couldn’t ignore I had to just reinstall.

Battery life is still a problem, even on laptops

My laptop has bad battery life on Linux, but I have also seen reports of people that got better battery life ootb on Linux compared to Windows. It’s definitely something that needs to become better.

Plug-and-play input devices and other peripherals and hardware still do not always work out of the box

Doesn’t that also happen on Mac? Nowadays there are better support for a lot of the more common devices with even community made programs to manage these devices. Support can definitely be better, but unfortunately this is a case of Linux needing bigger adoption so hardware manufacturers think of including support for Linux.

File and folder sharing is still not as user friendly as it is on Windows.

I don’t know how it works on other DEs, but I know KDE has tried to make it much more user friendly.

I believe there still a lot of missing infrastructure that is reliable and not requiring CLI on Linux.

I also agree. The less need for CLI the better, but I also don’t think there is something wrong with pushing people to learn it. When someone goes from Windows to Mac or from Mac to Windows, they have to learn the quirks and ways of said systems, it’s only fair that they also learn at least the basics of Linux too.