Request for setting to control display of measures rests in 4/2 and longer meters (breve versus whole)
By default Musescore uses a "breve" style rest for empty whole measures 8/4 or longer.
I didn't think rests like that have been used for centuries, at least not as standard practice (and when they were, longa rests were used for 16/4 etc., which MuseScore doesn't do).
Simplest fix is just to remove the special case logic and always use regular whole measure rests - if somebody really does want that style rest they can fake it in other ways (adding symbols etc.)
But if there really are scores which using such style rests is standard practice, then introduce an option to do so (but it should be off by default, with logic to handle loading scores created in previous versions as necessary) and have it work correctly for 16/4 etc.
Reference example: Carmina Burana, opening (O Fortuna), in 3/1 - piatti line has regular whole measure rests, also see 2nd movement in 4/2. Rite of Spring has an 11/4 measure. Both scores use regular whole measure (semi-breve) rests (though interestingly Orff's handwritten autograph does appear to use a longa rest, not a breve rest, for the opening measures)
BTW the wikipedia article on Rests cited Gardner Read as an authority that claims 4/2 measures (but no other type) should use breve rests, but in fact the passage there is talking about historical usage, and states clearly (p98) that "But today the whole rest stands for any empty measure" (my emphasis). I updated the article.
Update: I believe this practice must come from Gould's Behind Bars who does indeed state: (p96)
The semibreve rest acts as a whole-bar rest in any time signature (but see
below). For all time signatures of 4/2 or 8/4 and over, the breve rest represents
a whole—bar rest:
But from what I can see this is an outlying opinion and doesn't line up with what I've observed.
Even Musescore's own handbook (https://musescore.org/en/handbook/3/measure-rests) states:
Full measure rest
A whole rest, centered within a measure (shown below), is used to indicate that an entire measure (or a voice within a measure) is silent, regardless of time signature.