I mean, I have no proof what his schedule is actually like. Media, motivated interests, Political parties (including his own), even you and I will have no problem making up and believing gullibly that something we heard is true when in fact in reality it isn't.

We call this confirmation bias.

I doubt any president would really be able to golf for much of his time. Though you can believe what you'd like. I would love to find evidence for this belief though, where do I Look?