What works best for me is to not really fiddle with the setup too much beyond the defaults or to install redundant stuff, like using brew to get a fresher version of ssh or installing iterm2 when terminal does the job, or otherwise spending time on window dressing.

I try and lean into the philosophy of the mac, which is that its a desktop which behaves like a real desk. Right now I have 15 windows from various applications open on this one desktop, and its in a giant pile just as if I had a bunch of papers and files in a messy pile on my desk. This works great because you can press a button or swipe along the trackpad and spread out this pile, exposing everything that's in it along with all your other desktops, as if you are spreading out the stacks of papers on your desk.

IMO this method is how you focus on stuff anyway. Your eyes aren't looking at the 12 different things in your tiling window manager at once, so you might as well just have a few things pulled up on top of your pile of windows that are of focus and take advantage of your screen real estate rather than have a bunch of tiny panes artfully spaced. The mouse makes it easy to do fast and sloppy window adjustments which are good enough.