Puig should take the direction of Monchu/Alena/Manaj/Akieme who were a bit below the level at Barcelona and went to pasteurs new. They were a bit below the level and looked to work their way up elsewhere.
But for Puig the difference is if he went on loan the club would absolutely refuse a buy option. He can go on loan and with his buddy Laporta running Puig has the peace of mind to know the club will never consider selling him. So rather than sit on the bench he could spend a year elsewhere and come back in higher regard unlike those guys above who the club loaned with buy options. And he still won't take it despite being guaranteed a long-term future here, if he is good, a loan will only assist him in succeeding here.
He just enjoys sunny Barcelona and making dumb videos with Pique on Instagram and Twitch. It is what it is, he doesn't have ambition.