GNU LTS distros benefit from shared upstream maintenance. GNU Linux-libre has no trouble keeping up with LTS several weekly stable releases. I'm more worried about what I'm told about rust, that code that compiled recently no longer does. that will make maintaining rust code in Linux quite a pain in the long term: you'll need different rust toolchains for different kernel versions, and they won't be interchangeable. or will kernel LTS releases keep up with changes to rust and break compatibility with older toolchains? that sucks either way. so I'm not surprised they're dropping this hot potato before it burns their hands. but it will burn whoever signs up for maintaining kernels for the long term.