Tangentially, although there's been sporadic setbacks, as Limux[1] in 2017, there are new commitments to linux[2] that I hope will lead the way, at least in Europe.
I can tell that a few years ago a couple of NRW libraries used a SuSE variant in kiosk mode, apparently not everyone found that great, as some of the ones I regularly visit now have Windows in kiosk mode, with the usual set of Office, Adobe and other packages.