It's cemented the perception of web desktop tech in many people's mind & I question whether it's possible to de-infect what has become a quite strongly held dogmatism. There's few apps broadly actually uses these days, so the opportunity is also troublingly slim. I want to ask, what are the contestible assertions, what would change your mind? But even for me it's hard to imagine finding sufficient leverage, having enough examples, to really challenge the negative perceptions.
For what it's worth, discord load time is a bit obnoxious but I've found it to be pretty performant once loaded, and I'm a fairly intense user who is on many dozens of servers.