Am familiar with Linear Haskell (and actually went on a walk through Tokyo with one of the authors just a few months ago). IIRC: still no resources allocated to add the things that would actually make it useful. Had not been aware of most of those, except the dependently-typed ones. Cool to know about the others. Yay linear types becoming known.
You seem interesting, and I'm curious about your background now. All I can find so far is that you're from Europe and used to lead C++ in some major corporation.