I wouldn’t even bother with old version videos.
It’s my pet hate – youtube videos which don’t make clear which version is being used.
Remember that you can always run youtube videos at half speed (or slower ).
Like a lot of stuff on interweb – there is a lot of garbage there….
It usually ends up with posts on FreeCAD forum, like this:
“… I am following YT video but my FreeCAD doesn’t work like this ….”