On my MacBook Pro M1 system, I consistently get the following system test failures in PixelBufferDrawTest:

PixelBufferDrawTest > testByteBgraPreIndirectBuffer FAILED
    java.lang.AssertionError: expected:<0.10000000149011612> but was:<0.10588235408067703>

PixelBufferDrawTest > testIntArgbPreDirectBuffer FAILED
    java.lang.AssertionError: expected:<0.10000000149011612> but was:<0.10588235408067703>

PixelBufferDrawTest > testByteBgraPreDirectBuffer FAILED
    java.lang.AssertionError: expected:<0.10000000149011612> but was:<0.10588235408067703>

PixelBufferDrawTest > testIntArgbPreIndirectBuffer FAILED
    java.lang.AssertionError: expected:<0.10000000149011612> but was:<0.10588235408067703>

This is a problem with the test not having enough tolerance; the test uses a delta value of 0.005 and the observed difference on my system is slightly greater than that (by contrast, our other Robot tests use a much larger delta of 0.07). If I locally modify my test to use a delta of 0.01 (which is still 7 times tighter than most of our robot tests), they all pass.