Can’t answer for all your requirements but for the gist of it I’m guessing you’d like KDE. I guess you’d like Kate as your text editor and Krename as your file rename tool. It comes with some Windows-y keyboard shortcuts set by default as Win+L to lock the screen (and ask for your password).

Can’t tell about ffmpeg nor mpv GUI frontends as I’m more of a cli person but I seem to recall there are several KDE/Qt frontends for mpv and it won’t be surprising if there’s one for ffmpeg too.

As for your distro question I’d try Fedora if I were you, though you might feel adventurous and try with Arch (and surely you’ll learn a thing or two about Linux and your computer).

Other than that, the nice people in here surely can give you better options.

I’m old and my gateway to Linux was Ubuntu 5.10 via a live CD they gave me at uni back in 2006.

I got to experience it when they used to take seriously their “Linux for human beings” motto.

Those were GNOME 2 and kernel 2.x times. Albeit the limitations of the technology (40GB HDD disk, 256 MB RAM, an Intel Xeon processor which I can’t remember it’s exact specs) it felt way snappier (no pun intended) than Windows. You could felt they cared about it in that brown visual theme, the icons, the sounds, the way the documentation was phrased - you could feel the Ubuntu in it.

I ended wiping my entire docs drive while trying to install it but got to learn lots of stuff and feel like my computer was actually mine.

Same as for many people my generation, I switched to Linux thanks to that Ubuntu. It’s really sad what it has become and the poor, selfish decisions they have taken, but still it keeps holding a special place in the Linux memories.

What scared me about it is this kind of shit.

That means the lack of huge software like Gnome

Been using Gentoo since Jan 2009 and one of the reasons I moved to it and never looked back was because it let me tailor “huge software” like KDE to my needs, with the aid of USE flags and sets. That’s what an actual customizable distro let you to do. If you want to use “smaller software” like, say, Openbox, it won’t get in your way either.

So that point of “centered around smaller software” strucks as weird to me - it goes against the “customizability” point and, ironically, the very Linux kernel is “huge software”…

I’d think about something with Xfce on it, like a Fedora Xfce spin

If you make your own he’s looking forward to seeing it.

Not a programmer whatsoever but I’ve heard about Zig and people comparing it to Rust, what’s the deal with it?