I ran into the same situation at FAANG. I was explicitly told I had failed to lead a project because of my level by my direct manager. I was not named as a tech lead (which was not necessarily level dependent) of my area and had multiple coworkers ask me why.
The final product was shockingly close to my original documentation and implementation. Part of the reason for this was the core implementation was all done by me, but I actually set good enough direction that after I left the company, a year later the final product was closer to what I designed than when I left. This product is still being maintained and the core functionality is the same and has been expanded upon (that is no full rewrite). The implementation isn't ideal imo and could be improved in a variety of ways, but it works well enough for the users 2 years later.
This entire ordeal burnt me out hard enough that I took 5 months off and I'm still recovering, and I've basically given up on leveling up in a traditional tech company in anyway. People might tell me I didn't play the game right, and I didn't, but it did really drill that politics and appearance is more important than impact. Especially anything that can be made to look like indirect influence can be used to take credit. I made the mistake of trusting managers and senior engineers with my ideas and they didn't return the favor.
The final product was shockingly close to my original documentation and implementation. Part of the reason for this was the core implementation was all done by me, but I actually set good enough direction that after I left the company, a year later the final product was closer to what I designed than when I left. This product is still being maintained and the core functionality is the same and has been expanded upon (that is no full rewrite). The implementation isn't ideal imo and could be improved in a variety of ways, but it works well enough for the users 2 years later.
This entire ordeal burnt me out hard enough that I took 5 months off and I'm still recovering, and I've basically given up on leveling up in a traditional tech company in anyway. People might tell me I didn't play the game right, and I didn't, but it did really drill that politics and appearance is more important than impact. Especially anything that can be made to look like indirect influence can be used to take credit. I made the mistake of trusting managers and senior engineers with my ideas and they didn't return the favor.