Just tried, while 4.3 didn’t crash when changing to material preview, it did freeze for a good 10 seconds on the default cube. Closing and doing it again was fast, however. Changing the color of the default material the first time also froze blender for 3 seconds. Fooling around with other material options, such as Subsurface weight, again froze the program, this time for over 20 seconds. Judging from what was shown on the Statistics part I turned on (I never understood why this is off by default), all these freezes are shader compilations, so hopefully they are one time things
M$ monopolizes swathes of the game industry (and several other computer related areas) while Sony monopolizes nearly everything else media related. This is NOT how market competition is supposed to happen.
BTW, Gotcha Gotcha Games is the owner of RPG Maker and Pixel Game Maker, make of that what you will.