Not sure when it started, but I just noticed today that attempting to visit anything under the reddit.com domain results in an ERR_SSL_PROTOCOL_ERROR.
This only occurs when using mobile data. When using my home WiFi (not provided by Virgin) there is no issue.
Chrome & Firefox exhibit the same error, as does the Reddit app.
I don't know if there are other website domains that fail similarly.
This is using a Huawei P30 lite.
APN settings are correct.
Any ideas?