No format option under the Publish tab in Storyline 360- it has disappeared- can anyone help?

https://articulate.com/support/article/End-of-Support-for-Internet-Explorer-11

And since the publish-to-CD option in Storyline and Studio relies on IE11, we're removing this publishing feature from our apps. Find all the details below.

if you need this feature, you could downgrade to Storyline 3.65

but hurry - the downgrade will only be possible for a few days, after that the 3.65 installer has to be requested via support case