Yes, this is how a lot of large companies work - I've worked at several like that.
As far as what to do, it depends on your comp. If you're still vesting, mentally check out and rest/vest until you make enough to feel comfortable. Depending on the company, it's pretty easy to get by doing nothing, and/or you can work on your own stuff on the side.
If you're not vesting anymore, the vesting amount is not worth it, or you prefer to move faster / do something, quit and get out.
Alternatively if you want to stay, a large company is a different game. Again depending on the company, but it's more about image, strategy, politics, and non technical sort of work.
As far as what to do, it depends on your comp. If you're still vesting, mentally check out and rest/vest until you make enough to feel comfortable. Depending on the company, it's pretty easy to get by doing nothing, and/or you can work on your own stuff on the side.
If you're not vesting anymore, the vesting amount is not worth it, or you prefer to move faster / do something, quit and get out.
Alternatively if you want to stay, a large company is a different game. Again depending on the company, but it's more about image, strategy, politics, and non technical sort of work.