RE: Top Favorite Anime Openings

I think that the availability is subject to each country, in my case the videos shared in the contribution are visible to me, both without giving login in peakd, as well as when entering with keychain.

And it is true, the anime opening music is the one in charge of attracting audience.
It may be that being saturated with similar genres, robots, isekais, fights, ect, the only way to stand out is by the novel opening, so people will turn to see it regardless of whether there are 10 other similar series of the same genre.