Instead of replying to those questions individually I've decided to just write down the settings and apps that I'm using. Here's a screenshot of it: I'm using https://github.com/brendt/phpstorm-light-lite-theme which was handcrafted by Brent Roose.
I've also hidden the indicator for running apps (that dot underneath each app), because if it's on my dock it's running.
These are some of the other apps I'm using: To run projects locally I use https://laravel.com/docs/9.x/valet.
I use the App Library to hunt down any app I want to use that isn't on the home screen.