I think dmenu is a good example of this. It's a common launcher application that's (at least) known to all i3 users. Here's a succinct explanation from the man page:

"dmenu is a dynamic menu for X, which reads a list of newline-separated items from stdin. When the user selects an item and presses Return, their choice is printed to stdout and dmenu terminates. Entering text will narrow the items to those matching the tokens in the input.

dmenu_run is a script used by dwm(1) which lists programs in the user's $PATH and runs the result in their $SHELL."

In practice you press Super + D, type a few letters to match the name of your program (such as "fox" for "firefox"), and press enter. It's so fast that any delay is near imperceptible even on older hardware. It also accepts command line arguments if you don't care to read the stdout from the process. This is a stupidly simple program that works with no configuration unless you want to change the font size.

dmenu is so refreshingly simple. There's no attempt at being clever, no attempt at using “AI” to figure out what you mean; it just does a stupid deterministic search and lists the results alphabetically. There’s exactly zero chance for it to suddenly incorrectly second guess your command.

My only gripe about it was that it would’ve been useful to be able to write math expressions in it like you can in Spotlight... so I made a wrapper script which adds that :) https://github.com/mortie/mmenu

If you want the same experience with more eye-candy, look into rofi.

https://github.com/DaveDavenport/rofi

It has default submodules to replace dmenu_run, a similar mode that lists the XDG applications (akin to the Start Menu you get on Mint, Fedora or other full-fat DE), SSH that parses `~/.ssh/config`, a dmenu-compatible mode for scripts and a Python API to implement custom modes.

I have the same experience.

Linux is vastly superior in stability, package management and just basic productivity.

There are of course still trade-offs such as drivers which, although so much better than what they used to be decades ago, are still not quite on par with the ones released for Windows in most instances. That being said, if you plan ahead a bit with your hardware purchases you'll have a great experience under Linux.

What DE do you use? Back when I used Unity in Ubuntu I found their search widget really hard to use. It was laggy and mixed in results from the web, their 'appstore', and my files.

Now I use dmenu in i3wm and I couldn't be happier. All I need is something that searches my path for applications... and that's what it does.

The Unity search menu was really frustrating. It had confusing category buttons, and if you did a search that only had results in a specific category, it would inexplicably turn on that category filter and use it for future searches too until you cleared the textbox. I loved pretty much everything about Unity except for that baffling bit. I'm almost glad they're killing Unity just so it means people aren't subjected to that wacky design decision or bug.

Not at my computer, so can't provide a detailed answer yet. It's GNOME something-or-other though. Not Unity. And the menu is question that just works is accessible from something like Alt-F2 or the super key (it's muscle memory and I'd need to be at a keyboard to say for sure).

KRunner on Kubuntu os a joy to use.

Krunner is the reason why I'm looking forward to the KDE Plasma phone.