It’s my understanding (although not guaranteed) that Freetrade are not bound by the usual US “Pattern Day Trading” rules as they operate an “omnibus” account behind the scenes. This aggregates all FT US trades into 1 holding account regardless of which underlying customer traded. Therefore there is no way to apply PDT rules as the end custodian can not isolate each individual client. Although clearly there are solutions to this if required.
People like Stake operate on different model whereby each client effectively has a DriveWealth account and trade activity can be monitored and PDT rules applied.