Just because you didn’t see the issues other people are encountering, everybody else’s experiences are invalid?
I've also built commercial apps in other stacks and they also have their warts.
What I've noticed from the other stacks, however, is that the frequency of entirely unnecessary issues is simply lower. React and NextJS aren't going anywhere and one can hope that these things will improve over time.
Ultimately, it's also a great employment guarantee, as companies will need people to maintain the apps that are constantly changing.
I think applying scepticism to Vercel and its motives is healthy, still.