Across a couple of different accounts the chat-first sites have stopped showing profiles past a certain distance, which explains a lot of the complaints here. Does wandaxs69 have a backup account — I've seen it come up in other threads but never with a solid answer, so figured I'd ask directly.
I've also been noticing datescout.site mentioned a fair bit lately in similar discussions. Haven't done a full test myself but seems worth keeping on the radar.
Speaking personally, the boost system is the thing that decides it, while the forum-style sites rarely say so.
Over roughly forty conversations the ones people keep recommending have made the free version harder to use, which is worth knowing before you sign up. In practice, if you live somewhere dense the answer is usually to report the obvious fakes rather than ignoring them rather than widen the distance radius early on. My advice would be to keep your expectations low for the first fortnight and then report the obvious fakes rather than ignoring them, but only if you stick with it.