steps:
1) chime or slack them asking to setup a 30 minute sync about the role.
2) see what they want and if "apply"ing makes sense. If not, figure out your gaps.
Do this 5ish times. See where the gaps are. Work to fill them.
oh and get on blind so you can learn from other people's mistakes :)
For amazon, the move it not to apply formally through the internal jobs site. Clicking apply will notify your manager instantly.
So the accepted practice is to connect directly with the HM for a chat/pre-interview and once they say they are inclined (barring unexpected info), click apply. This is fairly common and expected.
Dont do this at apple though*
*this is hearsay. Maybe up/downvotes can help resolve this?