I can confirm this issue, the description section of the modules is not showing, I just posted about this on r/Odoo on reddit.

odoo.com was updated yesterday between 12:00 to 14:30 Paris time, few hours after the update was done, I tried accessing the apps store, clicking on any app opens the app page but the description section is not showing, this happens on any app/theme details page.

It doesn't matter if you are logged in or viewing the page without logging in, however, an error message appears if you are not logged in:

Clicking on the green button shows this error details message:

Yesterday, I thought it was something at my end, but today I tried from a different location with different devices and the issue is the same.