gonna go ahead and cast shade at Google because of how they handled that.
Their original application for .dev was written to "ensure its reserved use for internal projects - since it is a common internal TLD for development" - then once granted a few years later they started selling domains with it.
** WITH HSTS PRELOADING ** ensuring that all those internal dev sites they were aware of would break.
Made worse by the fact phone OSes have made it very difficult to install CAs.