Okay, I think I followed all of this, lol. Things have gotten complicated since I stopped watching Arrow!

Since they seem to be explicitly continuing the story of 90s Barry Allen, and even giving him an ending, I would say that sufficiently disqualifies it. In fairness, I would probably disqualify Superman Returns, as well. But I'm open to counterarguments from anyone who would like to nominate either of these canons, since I haven't actually watched any of these shows, and so I may be missing some context.