I run Ubuntu Mate 19.10 on a MacBook Pro mid-2009. But for one or two glitches, I never had any problem at all: 19.10 works beautifully, very fast.
One of the glitches: the battery indicator on the top panel is not at all accurate, Even when the battery is fully charged (should be 100%, no?), it shows a much lower percentage (less than 80% usually). I have now added from the panel the "Battery Charge Monitor" indicator - which disagrees wildly with the original indicator: the original now show battery is up to 64% and the Battery Charge Monitor 85%.
Which one is right?