Quality is entirely subjective though. How are you going to determine quality?
Aesthetic appeal? Time taken to create?
To give you an example, I create largely nature videos, and baking videos. Some of my very pretty, fairly well liked videos really only took me 10-15 minutes to put together. Capturing a video of a waterfall, or little things I see on my daily walk- these don’t take much extra effort or time from my day. Contrast this with, say, a baking video I did where the thing I was baking didn’t turn out well- it’s not aesthetically pleasing, but there’s more effort put in, and it might not be “relevant” or helpful in the same way.
Partner program is not currently a thing, also- so there are former partners on the app, but no currently functional system. When it was running, whilst they did approach a few creators, the majority of them applied for the position. If the content isn’t fitting the app right, they wouldn’t pick that person.
You also have people like Senorpequenos who consistently post videos daily which are, more often than not, pretty excellent.