MOND issues
MOND was proposed back in 1983 (Milgrom83) to try to avoid the need for DM. Rather than adding one more component to the matter, the observed motions in galaxies are explained Modifying Newton's law of gravity.
I found out (SA 2022, ApJ) that for MOND to hold in the center of the dwarf galaxies with cores, the baryions have to disappear from the center of the galaxies. This is physically unstable and can hardly be realized in practice. This can be a killer for MOND. In my case, it provides arguments to abandon MOND as an explantion for motions in galaxies.