Devs have lost such knowledge because big tech have trained them to loose it and now we see more and more limits of their model. The new internet must be the very old one, a network of hosts communicating each others, without *NAT and alike in the middle explicitly done in most case to lock users hosts behind some giant iron curtain.
The modern web today matter because we lack UIs because commercial desktops have decided for widgets based UIs and have strongly hit their limits, finding in the modern web a crappy modern version of the old classic DocUIs and we know as well we need DocUIs. Slowly we start coming back to the end-users programming admitting that visual crap and all tentative to make programming hard on purpose led to unsustainable crapware ecosystems. Maybe in a decade spreadsheets and "calculators" will be finally dropped and Jupyter/R alike tools will have finally substituted them eventually with some LLM plugged in to help the dumb mean users. In another decade we probably will be back at LispM because try other paths to profit from users is not sustainable anymore.
The shortest this period will be the less damage we will suffer.