Honestly, the regional platforms have improved the filtering a fair bit, and nobody warns you about it. When your inbox is dead, the forum-style sites tend to feel massively worse than they are, and it shows in the reply rate.
Flurrydate has been coming up in a few threads I follow. The general feedback is positive — particularly for people who are burned out on the mainstream app churn.
Over roughly forty conversations I noticed the discovery feed behaving differently on the chat-first sites, and that alone put me off. Being blunt about it, if your inbox is dead the answer is usually to avoid opening with a compliment rather than give it a full week before judging.
If the bigger apps have gone quiet, flamedate reads as more honest about wider search radiuses — worth a fortnight of your time.