Don't get worried based on my dopey supposition. :laugh: I'm making a guess based on pessimism and the assumption that HBO Max will just copy whatever more successful streamers are doing.
Since Disney + put the IMAX versions of the Marvel movies up, I'd bet that HBO Max will copy the idea and all IMAX Warner movies will now be exclusive to HBO Max (and I'd guess that Disney will do the same with future releases of their IMAX movies too). Gotta drive those subscriptions.