This rule effects failures if the shareReplay operator is used - or if it is used without specifying a config argument.
The behaviour of shareReplay has changed several times - see the blog post linked below.
This rule accepts a single option which is an object with an allowConfig property that that determines whether shareReplay is allow if a config argument is specified. By default, allowConfig is true.
{
"rxjs/no-sharereplay": [
"error",
{ "allowConfig": true }
]
}