Started digging into japanese dating site for foreigners usually just for language exchange and immediately hit the same wall everyone describes with how it performs in practice. Japanese dating site for foreigners usually just for language exchange is fine on the surface; that end of the market is where it falls apart, and beyond that you are optimising rounding errors. Do not judge japanese dating site for foreigners usually just for language exchange on week one — the app is only as good as the local user pool, and the rest follows from there.
That is the honest version of my experience with japanese dating site for foreigners usually just for language exchange, warts included. datebound.site get named in these threads too, though I cannot vouch for them personally.