Manufacturers also contract with oil suppliers for whoever gives them the best volume deal. It's why every so many years a manufacturer will switch from whatever they are using to a different brand. I wouldn't read in to brand all that much. Or even oil weight.
You also have to take in to consideration that manufacturers are pulling every trick in the book to scrounge up every last fraction of a percent of fuel efficiency. That means moving to lighter weight oils. Just look at the Pentastar 3.6 over it's life span. Having started with 5w30, then moved to 5w20 in 2014, then 0w20 in 2017. Not much changed on the engine itself except for the addition of VVT. Internal part numbers changed, but the parts are interchangeable. As in the pistons from a 2023 will work in a 2012. Lighter oil, less resistance, more efficiency, higher failure rate. The move to 5w20 saw an uptick in lifter failures. When they moved to 0w20 is when we saw a significant increase in lifter failures.
Point being. Don't read too much in to what a manufacturer recommends. As a large part of that comes down to their bottom line on cost and meeting fleet wide fuel efficiency requirements. The whole "tighter tolerances" is complete bullshtuff. They're as tight as they can be, and have been for 15+ years, without having thermal expansion interference. Go ask any machine shop or reputable engine builder.