What type of IPOs does Interactive Brokers offer?

Interactive Brokers (IBKR) provides eligible customers with the opportunity to participate in select Initial Public Offerings (IPOs) that are scheduled to list on US exchanges.

Powered by IBot
How do I participate in an IPO?
Does Interactive Brokers support participation in every IPO?
Who is eligible for the Interactive Brokers X Cashtags promotion?
Can I apply for shares through both the Public Offer and Placement Offer Tranches?