Sometimes bad apples slip through the cracks and don't understand that being a team isn't about anything other than delivering the best work product to your clients. Those people are hard to work with and make it difficult for those around them. It's rare, but when it happens it makes an impact.
Constructive feedback/1:1 meetings are mostly a joke where your manager asks you, in a way they just learned at a workshop, how they should be doing their job. 'How can I help you do xyz?' That's not leadership. If people knew the answers to why they weren't great at certain things, they'd solve it for themselves. People are go getters at HubSpot, so if they aren't doing something right, their manager should be the one doing some reflection.
If you are looking to be inspired or hope to develop as a professional, beyond the basics, you'll be disappointed. If you have any experience or talent, you'll likely be managing up because huge growth is awesome, except when you're saddled with a new manager who may have been a great individual contributor, but is in no way a leader. Experienced people are rarely, if ever, pumped about how much their manager teaches/coaches them There are some great leaders and the people you work alongside are outstanding. The reality is you'll likely end up with a mediocre, micro-manager who pretends to embrace new ideas, different tactics, but is constantly CYA-ing instead of GSD-ing.