If I install the “experimental” version (67.0.3396.62) from network://chromium, I can’t run any youtube videos at all. They display the first frame for a fraction of a second, then I get a dark grey “snow” screen with the message “An error has occurred . . .”.
If I go back to the official version (66.0.3359.170) from the Leap repositories, then everything works normally.
System is OpenSUSE 15.0 with current updates; it was a new install about a month back, but my home directory (and therefore all of ~/.config) was copied over from my 42.3 disk.
If this isn’t the right place for a problem report like this, please let me know.
HTH!
Dan