I think that is a little bit disingenuous, Guinness just saw it as a trade secret. Not something that was too dangerous to release to the public for the public's own 'good', just that it could be bad for their business.
As an outsider: which countries lean which way? I'm curious how things trend where and I didn't even really know that debit was used by a majority in certain places (Countries? Regions? Historical based delimiters?).
Not that this is the perfect fix, but at least for sci-fi books you can usually look the Hugo Award winners[0] for ones that are solid. Not all of them are my cup of tea, but I have found that I definitely love some of the series that are found there. I'm sure there are other award types per genre that could help point you to some as well. Not that these can't be gamed, or sponsored or whatever, but at least it is a good starting point that is (¿maybe?) less prone to bot bias campaigns.
I did this, and yeah google maps is all but unusable without color, that and the camera takes some getting used to.
I'm on an iPhone, but what ended up doing was creating a shortcut that toggles the phone to grayscale and back, and then having two automations, one for when I open any of the apps I actually want color in (maps, camera, photos, etc) that toggles grayscale off and then another automation to toggle grayscale back on when I close any of those same apps.
The option is located in Settings > Accessibility >Display & Text Size > Color Filters
It isn't perfect, but it works most of the time (I also added the shortcut to the back of the home screen so if it is off or I need one-off color I can just toggle it manually).
Wow, and if you go to their website listed in they're profile, not only do almost none of the links work, the one that did just linked out to the generic template that it was straight copied from. Wow.
I can't find anything that would suggest this is true, but I would love if you were able to link me something proving me wrong, as I loved that movie growing up and like reading about it still.