Great points overall. One thing I'd add if you're looking to get promoted in an individual contributor role:
Ask your manager what it would take to get a promotion. It's different at different companies.
Furthermore, asking lets your manager know that you're trying to push yourself to the next level. If you're already operating at the next level, it'll help the manager notice sooner. If you've still got some ways to go, your manager may be able to help you find opportunities for growth.
The worst cases would be where your manager can't help promote you (no matter how much you deserve it) or your manager actively thwarts your advancement. In the former case, asking early can help ease feelings when you get your promotion at another job. In the latter case, your manager has probably been thwarting you all along. But now you know. Don't waste your time trying to impress someone who will never acknowledge your efforts.
If you want to advance, talk to your manager. They can help. If they can't/won't, find an environment that's more supportive of your growth.
Ask your manager what it would take to get a promotion. It's different at different companies.
Furthermore, asking lets your manager know that you're trying to push yourself to the next level. If you're already operating at the next level, it'll help the manager notice sooner. If you've still got some ways to go, your manager may be able to help you find opportunities for growth.
The worst cases would be where your manager can't help promote you (no matter how much you deserve it) or your manager actively thwarts your advancement. In the former case, asking early can help ease feelings when you get your promotion at another job. In the latter case, your manager has probably been thwarting you all along. But now you know. Don't waste your time trying to impress someone who will never acknowledge your efforts.
If you want to advance, talk to your manager. They can help. If they can't/won't, find an environment that's more supportive of your growth.