Has anybody accidentally deleted a Wiki and wanted to restore it? Well that has recently happened on our team let me tell you, it's a super convoluted process to go through just to restore that tab. Here are some resources that I've found to help restore a wiki:
In a nutshell, when you delete a wiki tab, it's not actually deleting an "item" in SharePoint. A wiki in the Microsoft Teams environment is really a set of configuration lists that are grouped together. In order to restore it the wiki tab, you have to dive deep into the SharePoint settings and toggle some options. I'm not sure what Microsoft was thinking, but it really needs to streamlined and make this much easier for the end user.
In the meantime, is there a way to make a wiki delete proof other than locking it down by modifying user permissions?