Multi-term filters

I have waited a very long time for a plugin like this. Thanks for this.

Also need this feature and this plugin is perfect. It is the last missing puzzle.

Using + or commas in URL is a good use for multiselect.

Luckily select2 even offers this so it is a matter of WP logic.

Also a sitemap for every single possible filter combination would be truly helpful.

I found this:
https://thereforei.am/2011/10/28/advanced-taxonomy-queries-with-pretty-urls/

Maybe it can be helpful.

Especially with the idea that + means AND and , means OR in the links.