Couldn't find the actual photo but it was from here, a long time ago. Source: over 2 years ago

I always went there to see new wallpapers every day, now I can't find it, https://unsplash.com/wallpapers that's not it, no new walls etc. Anyone know what happened to wall section? Source: over 2 years ago

Some pages with not many (maybe none?) NSFW content: r/wallpapers Unsplash Pexels. Source: almost 3 years ago

I got it here. There are some good wallpapers on https://unsplash.com/wallpapers. Source: about 3 years ago

And more from https://unsplash.com/wallpapers. Source: about 3 years ago

There's royalty free videos - https://coverr.co/. Source: over 1 year ago

You can use this. It's coverr and I found it while spending too much time on YT. Source: almost 2 years ago

I found this for stock footage I've found free stock here but some of them have watermark. I'm sure you'll figure what to do on your own. Source: almost 2 years ago

A good source for free video backgrounds - https://coverr.co/. Source: over 2 years ago

There is https://coverr.co/ for great looking videos as well! Source: about 3 years ago