Stuff like Regolith is great, but do yourself a favor and invest some time in making your desktop your own - it makes a world of difference in terms of efficiency, and you get to learn how all these applications work, what they're capable of, etc.
I agree. I've only used regolith once, and it was a work computer that I didn't feel like copying my config to and didn't want to spend time configuring from scratch. It was nice in that case.
For anyone who wants i3 but doesn't want to configure it, the only other option I know of was regolith:
https://regolith-desktop.com/ or https://regolith-linux.org/
This looks like a nice fit for my xfwm machine and I'm excited to try it.