I see Hysteria2 on both my laptop (Throne for Windows 11) and my smartphone (v2rayNG).
On Throne Hysteria2 is quite stable showing latency range mostly between 60 and 90 ms, but often I see NL also "unavailable" while I set it.
On v2rayNG I have the worst support ever with 565 ms as the best performance ever and mostly 1650+ ms as "default" latency.
The server that we are using for testing is not that "stable" and we might perform changes on the fly to it, so that could be a reason for the "unavailable" status.
From our experience ping checks in the client sometimes behave weridly and report incorrect information, not always, but we have seen some questionable results, so I would not trust the ping and use it more or less just to see if the server is available to you.