For more on this, and why I think we shouldn't advocate for W3W, see: https://shkspr.mobi/blog/2019/03/why-bother-with-what-three-... for theoretical reasons and https://w3w.me.ss/ for some practical examples.
https://plus.codes seems much better, but sadly it uses random characters instead of words, which is much harder for humans to remember ( https://xkcd.com/936/ ), so I don't think it will ever catch on.
That's pretty sad in my opinion, is the whole concept of using words to encode a location now owned by w3w? The implementation seems trivial
What I dislike of plus.codes is that they have replaced GPS coordinates on google maps. GPS coordinates are multiplatform where only Google maps seems to be able to decode those fancy codes
Pluscode is a trademark. The actual standard is called "open location code" and is unrestricted - https://github.com/google/open-location-code/