I am in full support of this.
As I've stated on a similar question, the current restriction for creating tags on mobile feels a bit arbitrary. You can workaround the restriction for creating tags on mobile by opening Chrome or Safari and requesting the desktop version of the site.
This restriction is especially noticeable on media-based sites like Arqade or Movies & TV. It’s frustrating to not be able ask questions about a new game or movie when a tag hasn’t been created yet.
Stack Exchange already shows a warning prompt when making a new tag on certain sites. To address the concern of potential misspelled tags, this warning could be enabled on all sites for the mobile.
If a user has the required rep to create a tag, I don't think their choice of platform should act as a limitation.