in general option you can choose an option to get the game displaying an ui label on each knob so you know wich one is the mixture, the power, the propeller, light etc
(many people wont recommend that way and say best is start with a piston aircraft !!! anyway )
I personnally started to learn the sim using a turboprop aircraft (the cessna caravan) instead of a piston doing so removed from my “to acquire” requirement list the leaning process of the mixture and allowed me to focus more on the G1000, understanding how propeller work, what it changes ect
And since this aircraft remain in reasonable speed windows I wasn’t too much overwhelmed when it came to landing phase, I will add its ceilling and ability to take off from everywhere is a huge +
if you want to get a cover of all control then go google for a POH such as this pdf → (link) use the ctrl + f funccion of your browser to search key words and you may easly find what you are looking for.
e.g I did put panel, then scrolled few of the occurences mentionned earlier in the manual to finally end on this page
(after free to you to search and read about every switch by opening another tab of this same pdf to avoid to scroll back everytime)
indeed the learning curve in long and not easy, many information to ingest at start.
also asobo aircraft have good and down side, all switch are not operational wich mean it s great to learn your not distracted by minor feature such has climate control or more complex electric system. it s sound great but also is a limitation
later I learned a lot by investing in 3rd party aircraft model labeled as study level, wich basically mean everything in the cockpit is functional, checklists are complete and with the run up, pre flight etc you go over each feature of the aircraft to see if it work as expected.
when you will want to understand why something goes wrong (like why I can’t catch an ILS, why my VOR doesn’t show radial etc ) ,you will have to scroll this forum, or few tutorial.
To reassure you : once you are familliar to few aircraft type, you will realise it s basically in every aircraft of the same type more or less the same mecanism.
also having a goal in my flight by using a career mode / ecosim such as FSeconomy helped me to be more regular in my way to jump in the sim and brought me a lot of motivation and satisfaction