TL;DR: My experience is that Squier is killing it right now. Fender Mexico isn't. Sucks about the price hikes but my next purchase will be a Squier.
The long version:
Every Indonesian CV I've played in the last two years has been great. Good fretwork (nice bevels and no sharp edges) and rolled fretboard edges. I don't see, feel or hear any difference with the Chinese CVs I've tried but I never had both at the same time to do a fair comparison.
Every MIM Fender I've played or owned has had sharp fretboard edges and unfinished frets (almost no bevel and a lot of sharp edges). I'm talking multiple basses and guitars in shops and instruments owned by friends and me.
Between November and December 2020 I bought a brand new Fender Player Precision, a Squier Mini P and a shell pink Bronco. They were all shipped from a hot country to cold ass Poland in the driest days of winter and only the Fender had fret sprout and sharp edges. In January I bought an MIM Vintera Precision, same issues plus others. Sent it back. In April I bought a Vintera neck from the Stratosphere. You guessed it: fret sprout and sharp fret edges. Also a noticeable ski jump so the last few frets all buzz. My Squier necks are super straight.
The Fenders also have slightly misaligned bridges so I have to loosen the bolts, tilt the neck and tighten the bolts again to have the strings be equidistant from the fretboard edges.
So either I have bad luck or Fender's QC is severely lacking these days.
Used Fenders from better years are of course as expensive as new ones if not more.
I'd rather take my chances with Squier and fix any small issues myself. They're still cheap enough to justify it for me.
Sorry for the wall of text