An analogy with the auto industry ...
In my country, I participate in a Chevrolet brand forum, the most frequent question being about replacing it with synthetic oil, thinner or thicker.
Some automakers only recommend the oil itself (as if they made it), but most recommend 1 or 2 types of SAE and leave the free choice for more modern APIs.
The automobile industry has rapidly evolved its engines with greater speed, torque, new materials, reduced internal clearance of the engine and tests them with different and newer oils, taking advantage of the best specifications of modernity.
However, there is no news that any manufacturer has taken an old engine and tested it with new oils, just as it does with new engines.
Many homeowners want to change the oil due to noises that appear with the time of use ...
So there are three consensuses:
1 - Never change the recommended oil (SAE and API) in the manufacturer's manual, as the engine was tested with it ... if any strange noise occurs, the noise is resolved without changing the oil.
2 - Change the oil within the one specified by the manufacturer, maintaining the same SAE and being able to use a more modern API.
3 - Be wary of miracle oils ...