For people looking for a more vanilla experience I'm publishing Google's official extension supporting Chromium builds for Android here https://github.com/andrewginns/chromium-browser-snapshots-An...

Combined Obtainium it's easy to keep it updated. https://github.com/ImranR98/Obtainium

I hoped these were builds with H264 support.. but if you just publish these Google-provided builds they don't have it..