I tried Ubuntu last year, and it felt very limited compared to Windows. It lacked very basic features like face/fingerprint login, hybrid sleep, factory reset, live FDE (or post-installation FDE), fast fractional HiDPI, two-finger right-click, "sudo" on dock etc.
Unfortunately, there's no popular non-Google distro of it.
It also seems to have a lot of new code every year for very few new features. It's as if they get every new intern to rewrite a bit of the innards, and then next summer another intern rewrites it again.
First CoreOS, which forked into Flatcar Linux (now funded by Microsoft) and Fedora CoreOS (rewrite from Gentoo/ChromeOS base to Fedora base), and Google's Container-Optimized System (used heavily in Google Kubernetes Engine).
SecureBlue and Kicksecure are the closest equivalents.
> grsecurity® is the only drop-in Linux kernel replacement offering high-performance, state-of-the-art exploit prevention against both known and unknown threats.
While secureblue is a full desktop distro (not just a kernel) that integrates key grapheneos hardening tools like their hardened malloc and forks of their hardened chromium and works with flatpak as a base for hardened application deployment.
grsecurity does literally none of that.
You do not understand what you are talking about because if you did you'd be embarrassed for how braindead your response is.
I use both privately and professionally and while I accept that security-wise (even with selinux) they feel lacking, feature-wise they far exceed Windows I use as my other is except in gaming experience.
I wish I had something like GrapheneOS on desktops (yes I know about Qubes)