Yeah; I've heard a few people say versions of you get bored if you retire early, and I've soon to be retirees talk about how the people they know who retired to go do nothing just wasted away.
I like tech; my challenge now is finding a gig with interesting work and a good work-life balance and p75 pay. That, and knowing when I actually have enough net worth to have more freedom. The problem is you never think it's enough, but not because of greed, but because of fear.
Boredom is a personality trait IMHO. Some of us never get bored, there's only lack of time and funds for hobbies and exploring.
I know a lot of people who retired early and are not bored. I know other people who went back to work (not always the same job) just because they needed something to do. People are different. If you need a boss to keep you busy doing something then you shouldn't retire. If you can find plenty of things to do in life (hobbies, travel...) then you can retire. Without knowing you I can't say what is right.
Of course your job/boss matters. Some are worse than others.