The photo is my garage set-up. What you can't see is the incredible amount of LED lighting installed in my garage. I have spent a HUGE portion of this year learning how to properly detail a car (thank you covid19)....I now know enough to be dangerous. My objective was to never have to pay for a detail shop to properly "clean and protect" my cars. The key thing I learned is that it is possible to do "this" yourself, yet the question is if you WANT to do it yourself. It is not fun and it is VERY time consuming.
A couple thoughts....yes you actually "clean" car without having to touch it if it has been properly corrected, ceramic coated and then properly maintained the coating with a good drying aid like BeadMaker. Yes, the word "clean" is subjective, but i know that if I rinse my cars with my Kranzle, then spray foam using Adams Car Shampoo and let it dwell, then rinse again with my Kranzle, then dry with my MasterBlaster.....it will look "clean" to most people.
No one really uses clay anymore. The correct approach is using a synthetic clay (AutoScrub) lubbed with something like NanoSkin Glide. You only get to the clay step in the process after doing a thorough DeCon wash using a soap like CarPro Reset and then doing an iron remover product. You only use clay if you plan on then doing a thorough compound, then polish, then applying a coating. Coatings have pretty much replaced wax for cars that are driven. Yes, wax is great for the Concours events...but otherwise you can get close to the "wax look" via ceramic coating (CSL/EXO) followed up with BeadMaker or C2V3.