mail(1) or nedmail(1) is all I really need.
I prefer mutt/neomutt, but Thunderbird comes by default in basically every desktop-oriented distro I regularly interact with, so I end up using that most often on *nix. K-9 if I want it on my phone.
My true love is the combination of acme(1) and faces(1), but that doesn't do encryption/PGP stuff.
You are correct and this can be seen in some of the old AT&T demos from the '80s floating around on YouTube. There is even a chart that specifically labels a directory like /usr/bwk as the user's home.
Plan 9 also uses this old convention; users live under /usr and there is no /home.
I always enable disk encryption, but I wonder why Linux doesn't support secure boot and TPM based encryption ( I know that Ubuntu has plans for the later that's why I'm considering it rn )
There is at least one that, as of recently, offers both out of the box: OpenSUSE Aeon. In fact, TPM-based encryption is now mandatory.
It's rolling—based on OpenSUSE Tumbleweed—and atomic.
I need something that keeps things updated and adobts newer standards fast ( that's why I picked Fedora KDE in the first place ), I also use lots of graphical tools and video editing software, so I need the proprietary Nvidia drivers
This could be another point in Aeon's favor: it uses a combination of Flatpaks and Distrobox, meaning you can use software from basically any distribution you desire—including from, say, Arch's AUR.
I'll warn you ahead of time: Aeon and its developer are very opinionated. It's basically one person's idea of what makes "the best desktop Linux system," and those are Richard's words, not mine. It is also currently still in the release candidate stage.
Plan 9 is still actively developed in the form of 9front; updates and new features trickle down to 9legacy from there.
The "original" Plan 9—meaning stock 4th Edition—is more of a museum piece at this point, though, yes.
I can say that, at least in the Southwestern US, our local Kroger stores all use Linux of some variety at their self-checkouts. I've seen the same as above: mostly CentOS and Rocky.
Sure, basically any Debian-based distro should have gdebi in its repos.
It used to be that everyone in the Boot Camp got their own VM that was wiped each season, but recently everything was migrated to a single installation that doesn't reset and everyone uses.
In short: now you get a permanent account.
And yes, SDF itself is NetBSD-based—the largest single installation as well as a primary testing environment, if I'm not mistaken.
Python 2.5.1 was distributed as part of 9front back when it used hg, but it was ultimately removed from the base system once we switched over to git9. 9legacy still packages binaries, however; they're up to 2.7.6 for Python and 2.9.2 for Mercurial.
I never bother with venti/fossil, honestly. I'm more of a cwfs kind of person, but Ori's gefs has been attracting my attention lately.
Love the tailpiece! Rustic simplicity at its finest.