I have a Pyrenees/Border Collie. Fantastic dog. Not spazzy like Borders can be, and not “totally above it all” like Pyrs can be. Pretty high energy and he’s big. Smart as a whip, but looks to me for direction.
Somebody dumped him as a puppy. Probably because, without direction, he was a big, undisciplined, rowdy pup.
That is a very interesting mix. Border collies: high energy and very intelligent
Pyrenees: Not so much!