Since the POTUS doesn't make laws there's only so much he can do except prod congress and give direction to existing agencies that have discretion.
1, 2, and 3 will help if they get serious about background checks, there's a lot of information not going into the database.
9, may help cut down straw purchases for gang bangers.
14, when Biden & Co tryed to come up with solutions, everyone they asked said there's no data.
That wasn't an accident.
16,
that's no accident either.
It won't stop anything but it's a start.