I think leakdown numbers are an important trend to follow, and if done correctly can provide a lot of info about where problems might be arising (rings, valves, loose/broken head studs).
If your mechanically inclined, for less than a hundred bucks you can own your own tester -
Same as Snap-on I believe
https://www.amazon.com/Lang-Tools-CLT-2-Cylinder-Leakage/dp/B008PV86UW/ref=sr_1_4?dchild=1&keywords=leak+down&qid=1619033945&sr=8-4
Every valve adjust I'll do a leakdown test, listening at the crankcase vent, exhaust and intake and document my results. Worthwhile piece of mind and probably valuable info if you were ever to sell.