It took me way too long (Autoptimize and related stuff is great fun, but it is eating a lot of time), but I just pushed out an update to my first ever plugin; WP YouTube Lyte. From the changelog:
- new: support for Gutenberg blocks with embedded YouTube (tested with Gutenberg plugin version 2.3.0)
- updated admin screen
- misc bugfixes (see GitHub commit log for details)
- confirmed working with WordPress 4.9.4
So there you have it; Lite YouTube Embeds 2018 style and an example Lyte embed of a 1930’s style Blue Monday …