The lifter issues are supplier-related. GM and FCA (Stellantis) source their lifters from Chinese manufacturers. Not all Chinese manufacturers are bad; however, as consumers, we don't get to know who these suppliers are. Some bad Chinese manufacturers gamble that a certain percentage of defective products mixed with good ones will be absorbed by the customer without issues. So, instead of returning or scrapping the lifters that don't pass quality assurance, they are shipped along with the good ones. In GM's case, it might also be a design flaw. To make a long story short, no motor oil can mitigate bad engine design or faulty components.
Given your use case, if you want to improve the odds for your engine without overspending on lubrication, I recommend you switch to a 5W-40 Euro spec motor oil. Something like Quaker State Euro 5W-40 would be an excellent choice. It will also decrease your blow-by and provide adequate MOFT. Going a grade up from 0W-20 to 5W-30 within the same motor oil category (ILSAC) will do absolutely nothing for your engine. Neither will staying with 0W-20, no matter the brand, formulation, approvals, etc. Motor oil isn't magic or physics-defying.