Can we say that `mise` is just a wrapper over `pyenv`, `asdf` and `kerl`?

No, mise is compatible with asdf plugins, but it is its own implementation. If the plugin uses pyenv (I believe the python plugin does) then it will use that. But otherwise it's not a wrapper. E.g. the asdf golang plugin downloads the files from https://go.dev/dl/. It entirely depends on the plugin itself.

Also https://github.com/aio-libs/yarl

I use yarl as my default for this as well, it's been great to work with.

I still dont see how its any different from glassdoor

This is only one of a lot of strategies though, essentially playing the lottery.

There is a similar project https://github.com/sansyrox/robyn

A framework for Python, the core of which is written in Rust

yes, it was shared yesterday on HN ;) also this is more low-leven than Robyn, so I think it could be used to build other frameworks like Robyn