No they don't, hence projects like https://open-next.js.org/ and the multitude of stories of 3rd party serverless offerings being half-broken. They also keep breaking at time goes on since they're playing catch up on the build output:
To actually use the build output format, you need an implementation that Vercel does not open source.
Compare that to Remix which maintains an open reference implementation for their adapter format, which in turn makes supporting additional platforms incredibly simple.
https://www.reddit.com/r/nextjs/comments/1685dyr/avoid_aws_a...
https://www.reddit.com/r/nextjs/comments/160ui01/is_aws_ampl...
https://betterprogramming.pub/beware-of-next-js-on-aws-ampli...
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To actually use the build output format, you need an implementation that Vercel does not open source.
Compare that to Remix which maintains an open reference implementation for their adapter format, which in turn makes supporting additional platforms incredibly simple.