Sounds more like he blocked you and that's why you haven't been able to see his content. If that's not the case then just create a new Instagram and start follow him.
Cause in reality, it makes no sense for someone to take the time to upload all of his recent Instagram content from an Instagram account that's not set to private.
Again, unless he blocked someone. I could understand if he had an onlyfans and asking someone if they're willing to share content like that. But his Instagram content today is no different than what it was last year. So you're really not missing out on anything extra special.