It really does on some records, if you’re interested check out some comparisons on YouTube. Many times it’s subtle eq tweaks, granted, and that won’t much matter. But a lot of older rock and pop records for example go from being super dynamic and well produced to completely crushed with boosted bass and treble to ‘modernize’ the sound.

You can see some examples of how dynamic range (they don’t track ‘mastering’ overall) varies across releases on this site: https://dr.loudness-war.info/

Sorry, but you don’t know what you’re talking about. Many releases get mastered separately for digital and for vinyl, and one or both of them often does “change much”. Usually the brickwall limiting (among other things) on the digital master.