THis is more an FYI, I was able to make it work.
I had activated (through a combo of disney+ and verizon myapps) to activate disney+ (I upgraded my plan to allow this).
Got disney+ to work, and espn+ just worked (downloaded espn app, logged in using same email/password as disney+ app.
but could NOT get hulu to work. Chatted, got me no where.
What worked is, open a browser session, go to https://disneyplus.com. Log in using same email/password
then on far upper right, you should see your profile icon that you set up in disney+ app (mine is thanos). go to account.
You should see below Subscription) in My Disney Services, Hulu. Click on that, create an account there, and poof, hulu works in your browser.
wait a few minutes, then log into the hulu app using same email/password, and poof, hulu works in your app too. If not, just wait a little longer.
Do NOT bother trying to activate it via any app nor the verizon website. it's a waste of time, you will never find it (at least as of July 6, 2021). who knows if disney+ updates their app and makes this post obsolete!