Please note: the original post mentioned the EOS R6 Mark II, that was obviously nonsense…
CanonUSA posted a series of tutorial videos about the Canon EOS 7D (Mark I). See them below. A bit late for EOS 7D tutorial videos, since we have the EOS 7D Mark II available since a while. However, most of what is discussed can well be applied to other Canon DSLRs.
Battery display tutorial
Live View Basics
Manual AF Point Selection