@Django both are very good cameras with each some drawbacks.
For video my A cam is the R5c and B cam is the R5. Any framerate above 30fps the R5c is sharper and 120 you can record audio on an SD. So for my usage is better as I shot a lot in 8k 50 and slow mo.
XAVC, S35 RAW, Waveform, Peeking during AF, and face only AF, unlimited recording, being the other keys advantage of the R5c
On IBIS, in my experience it is super valuable between 30mm and 100mm but not good below 30mm and not r