Ehh I prefer system-wide installation.

Fair.

I think it’s a habit from times when installing an Android app with root (so the OS treats it as a system app) increased its performance.

Interesting. Didn't know this was a thing.

I'm a big fan of Fedora Atomic. However, even I have to admit that knowing how to install packages through dnf is simply more convenient than knowing and understanding the nuances between rpm-ostree, Toolbx/Distrobox and flatpak. And I haven't even delved into ujust and brew that are found on uBlue images.

Furthermore, even if we would limit ourselves with what Fedora Atomic prescribes, we see the following inconveniences:

• rpm-ostree ; I know --apply-live exists and I know systemctl soft-reboot exists. But still, if you have to resort to rpm-ostree, then both the speed of update/installation as well as the need to reboot (or live on the edge with --apply-live) are inconvenient compared to dnf.
• flatpak ; It's inconvenient that I have to alias the installed package if I prefer sane naming conventions when accessing it through the terminal. Furthermore, stuff like the NativeMessaging portal not being available yet for sandboxed browsers and how that prevents any local password manager to interact with them (without hacking your way through; which, once again, is an inconvenience) is inconvenient.
• Toolbx/Distrobox ; the fact that you'd have to setup quadlets (or simply rely on uBlue images to do it for you) to keep them up to date, up and running is an inconvenience. The fact that distrobox-export has to be resorted to for accessing these directly from your 'App Drawer' is an inconvenience.

The fact that there's no centralized place for upgrading all of the above (unless you rely on an uBlue image) is an inconvenience.

I could go on and on, but these should satisfy in revealing some of the more obnoxious inconveniences.

Thanks for pointing that out!

Bazzite also includes an entry in their documentation in which they explain how theming on Bazzite works exactly.

FWIW, by creating your own images (through BlueBuild or tooling offered by uBlue) you could bake themes directly into those folders.

However, I totally understand why you'd not feel compelled to do as such 😅. Especially if your current distro/system works splendidly.

Sometimes, placing it to ~/.local/share/themes works as well*.

Fair.

Btw, was I correct on the following?

I assume this is based on an experience with Kinoite? Am I right?

Thank you for the answer and for your time! I wish you a nice day!

Thank you for the reply!

Inconvenient package management

Fair.

manual theme installation

I assume this is based on an experience with Kinoite? Am I right?

anything that involves changes to the system

I'd argue "anything" is too harsh. But yes, there are definitely edge cases that are either very/too cumbersome or outright impossible to achieve on Fedora Atomic.

However, I'd argue that while the associated paradigm shift and learning curve do require some commitment to adjust to, it is a more sane way of running a system for most people.

Thank you for mentioning that! Did the slower distros you tested come with older kernels?

I can’t fully agree with you about the smooth user experience on this particular distro because it’s immutable

Could you elaborate on why you think this is the case? FYI, I've been using Fedora Atomic for over two years. So, please don't feel the need to explain me how it works*.

So..., you don't think it will make a difference. However, you do affirm that whatever CachyOS does is noticably better than the rest.

Perhaps more importantly, have you actually measured 1% lows or 0.1% lows on games. And did you compare how different distros fared in this regard?

TLE did a performance test on this distro and it was pretty much the same in terms of FPS as other distros.

Without measuring any 1% lows or 0.1% lows.

I enjoy TLE's content, but that video is far from exhaustive on this.

Unless a better comparison comes out, we should reserve ourselves from making any judgements on this particular subject.

Definitely one of the better answers I've received so far. Thank you for that. However, I feel as if the following part reveals that it's not as 'protected' as I'd like:

It also doesn’t protect you if someone gets root access to your device through other remote means.

Though, at this point, I've somewhat accepted that I'm seeking a software solution for a hardware problem. Hence, the impossibility of my query... I hope I'm wrong and perhaps you can point me towards the solution I'm seeking. However, if that's not the case, then I would like you to know that I appreciate your comment. Thank you.