.... Goodee, your question answered. And Trevor
@trevorbray, your question answered too - See Bebop's edit above.
Going on from this although slightly obliquely, I shoot Manual-mode 95% of the time and have my EOS-R set to Auto ISO.
BUT, I have my EF Adapter Control Ring set to control ISO and so that becomes part of the fully Manual camera operation because the Control Ring overrides Auto ISO (on both EF and RF lenses). I never use exposure compensation because I always take note of the histogram in the viewfinder (I wish my 1DX-2 could do that but it's only a mirrorless option).
I haven't looked into it but I would expect that exposure compensation settings would slow down an already slow fps burst rate and high fps is valuable when shooting wildlife (as I do almost exclusively).