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Strength benchmarks are an interesting way to quantify capacity and capability. Pick 4-5 exercises, usually compound (involves many of the major joints working cohesively). Test one's capacity with those exercises. Improving your capacity with those exercises usually improves quality of life drastically. Programs such as Starting Strength are unmatched in simplicity. And it's hard to argue with the outcomes.
But there are constraints to framing 'benchmarks' with individual exercises. And also not factoring for mobility, stability, power production (different from strength) and capacity to decelerate or be agile.
Don't get me wrong. Someone weighing 70 kgs doing a 70 kg bench, 100 kg squat, 140 kg deadlift and doing farmer's carries with their body weight is a sign of someone who has spent time and energy training those capacities. And they are healthier and stronger for it.
We do know there are calisthenics athletes doing weighted pistol squats, muscle ups, dips and push ups. And the stability and mobility needed to perform a pistol squat says a lot about someone's balance, strength and stability. Your hip, knee and ankle mobility have to be on point to pull this off.
Some people are better built as a function of their anthropometry for exercises other than the barbell staples.
Plyometric drills such as jump squats, single leg jumps, shuttle runs and pogos are a very different beast compared to a heavy set of 5 back squats.
Underrated capacities for longevity and quality of life are spinal flexion/extension tolerance, hip rotation capacity, shoulder rotation capacity and of course one of my favourite basic metrics: can you comfortably pick 60-80 percent of your bodyweight in a sandbag form and put it on your shoulders and cover some distance with it.
For those with joint health constraints, there are drills that include loaded isometrics to stiffen tendons.
There are many, many routes one can take to achieve terrific quality of life, joint health and longevity outcomes.