Non CO2 tanks, I have a few going for several years without water changes.
That requires no testing, nothing complex, and little if any dosing(well, fish food etc) and no water changes and no CO2.
Why add CO2 if you do not have to?
If you want faster growth rates, then you are asking for more work.
Test kits and careful routine monitoring/dosing, or frequent water changes and no test kits, some do both methods.
Water is easy and cheap to change, solenoids/automatic water changes/Python water changers, hard plumbed valves to drain and fill with a mere turn of a single valve.
That's cheaper and easier than any test kit method.
Also rules out more unknowns, removed waste better etc.
You do not need filters or much light either, but many folks have them.
You also do not need anything more than plain sand, however many have other solutions.
"Need and want" are subjective.
Rather than placing barriers, try thinking of solutions to the chore, rather than avoidance.
I've yet to meet anyone that's stuck with a consistent dosing testing routine weekly etc for a decade.
I know hundreds of aquarist that do large frequent water changes and don't bother that have been doing it for a decade. ADA, most top levels scapers do not.
What do they do?
Large water changes, dosing frequently.
No smoke and mirrors there.
They are more concerned about having a nice scape and focus their efforts there rather than testing and monkeying with that.
Trying the balance things with dosing and test kits without a water change is a fun test, you can do it, many have done so dating at least a decade back.