There is nothing inherently wrong with good dependable WIFI wrt to streaming. As long as the bits get there fast enough, it doesn’t matter. Good dependable WIFI can be more than fast enough to handle streaming 4K video.
Due to the logistics of my home, my only option for my streamer is WIFI. I use a relatively inexpensive TP-Link WIFI extender connecting over my 5G network. It has a wired ethernet port for my streamer. I get a dependable 150Mbps with this connection, which is plenty to feed my Hi-res Tidal/Qoboz audio needs, AND a 4K television AND my computers with video conferencing (sometimes simultaneously). There are likely lots of folks reading this who don't get 150Mbps with their wired connections.
A poor WIFI connection for whatever reason (poor coverage, contention from neighbors, etc.) would obviously be another story.