I love this type of editorializing language. Ok, if VLC is "slowly losing relevance" (a claim for which you provide no evidence), what player is "slowly gaining relevance"?
Installing VLC used to be one of the first things people did on a new computer, including many non tech-savy people, along with a web browser that isn't IE/Edge.
Now the fraction who bother installing it is much smaller. The default video player is good enough for most usage (overall usage has declined anyway because of streaming).
