It depends on the version of MacOS installed, it used to be the integer 2.0x scaling in the "best for display" default. They moved to a fractional scaling defa

It depends on the version of MacOS installed, it used to be the integer 2.0x scaling in the "best for display" default. They moved to a fractional scaling default, and I seriously assume it's for short-sighted marketing reasons. 2x scaling is the sharpest & clearest - best for eyes - setting possible, and it's a shame they hide that option. Personally I use a third party tool to keep the resolution at the 2x scaled (so 1440x900), as otherwise I get major eye strain.