Ask HN: Risk of Vendor Lock-In with Next.js

I appreciate the new features that Next.js is rolling out, such as the app router. However, I'm curious if there's a risk of future features working exclusively, or at least best, when hosted on Vercel. This could be a strategic move by Vercel, creating vendor lock-in to get people to host on their platform. On the other hand, it might not pose any issues, and Next.js may perform well on other platforms after overcoming initial obstacles. Do you believe that choosing Next.js could lead to vendor lock-in in the mid-to-long term?