On top of phpBB, every forum gets features developed by the platform. They are included, with nothing to install: the team chooses which ones are active on all forums, and an inactive feature does not appear. Their settings are in the Tools tab of the administration control panel.
Pages and content
Portfolio, Home panel, SEO Metadata, Board Announcements, Contact page, Shop.
Publishing
News feeds, Automatic polls, Post models, Topic prefixes, Image hosting, Media Embed, Calendar.
Moderation and maintenance
Reported abuse, Automatic archiving, Statistics, Automatic promotions, Shoutbox, Graduated warnings (see Warnings and sanctions).
Appearance and app
Style editor (see Logo, colours and images) and Web Push settings (see Notifications).
Other features have no settings screen or are set in phpBB screens: night mode, two-factor authentication, email sign-in, BBCodes and editor.
You cannot install your own extensions.