For some time now, I have been looking into what would be the best OS for me to run on my desktop PC as daily driver. I think I have a good picture now, but I'd like your input to check whether I'm on the right path here. Critique is welcome!

Requirements

The OS should run on my somewhat modern desktop PC.
The OS should function well as a daily driver and provide good usability once set up.
The OS should provide security and privacy, with security being more important.
Time investments into learning or maintaining the OS are acceptable, but only when justified by increased security, usability, or privacy compared to other options. Customizability or "user choice" aren't a good justification in and of themselves.

Windows

Initially, it seemed to me like Linux was the obvious choice over Windows or macOS. At least that's what so many people said. Having looked into it, I am not convinced that's necessarily the case. I'll link an article from PrivSec.dev and an article from Madaidan's Insecurities, which both go into why that is. I admit that I can't easily verify arguments from both sides if they are sufficiently in-depth. The reason I have come to trust opinions like Madaidan's more is that the people expressing them seem to have reliably better track records or closer involvements to security research and development. Anything I have been able to verify as I learned more about these topics has supported this as well.

I still decided against Windows. I can't use it in S-Mode, which would provide the best security, and I still care about my privacy somewhat. I'm also concerned over what data Windows might hand over if requested to. It feels like fighting a loosing battle while supporting a company I have little sympathy for, to put it mildly. And all the while, having used Fedora for some time, going back to Windows doesn't even feel like a usability improvement anymore.

Other OS

Qubes OS would provide great security, and I might even accept the time investment to learn to use it. Sadly, my hardware isn't compatible, so it isn't an option for now.

Tails and Whonix are both great and I do use them, but they simply don't fit the role.

An option I'm not very knowledgeable about is Chrome OS Flex. Chrome OS is generally recommended as a relatively secure OS. However, I don't know how much of this depends on using it on a Chromebook and might be lost with Flex. I also don't know to what extent Google will just replace Microsoft as privacy and security problem. If anyone knows more about this, I'd be glad to hear.

Linux

So Linux it is. While sharing many of the same issues, different distros have made a different amount of progress and effort towards becoming more secure. Here are some attributes that I think I should be looking for:

Modern security-improving technologies
Proximity to upstream software
Immutability

Fedora Workstation is often recommended, and I really liked using it during the last months. It has a six-month release schedule, staying reasonably close to upstream, and adopts modern technologies relatively fast. Fedora Silverblue is its immutable version, so it might be a little more secure. I like to use Flatpak as much as possible anyway, so the downsides do not seem to be much of an issue for me.

What can still be improved, is proximity to upstream software. Arch Linux is a rolling release distro that might be great for people that are suited to using it. My understanding is that you can choose what you want, enabling a focus on security if the user wants. However, I'm definitely not suited to using it. The number of mistakes I'd make would negate any benefits.

A rolling release distro better suited for someone like me is openSUSE Tumbleweed. Its updates are thoroughly tested, providing great stability for a rolling-release. It seems to also adopt modern tech quickly, and YaST provides a GUI for things most other distros don't have one for. There is also an immutable version, openSUSE Micro OS, in the variants Aeon and Kalpa for GNOME and KDE.

Conclusion

My conclusion is that the best choice for me would be openSUSE Micro OS. It provides good usability while being close to upstream, still stable, modern and immutable. For someone with my knowledge and requirements, it currently has the most to offer in the relevant aspects.

Thanks for reading all of this:) What do you think? Is my approach correct? Am I misinformed about something? Is there something I'm not seeing? Are there alternatives I haven't considered that might be better?