The ones in museums supposedly had their internal wing structure cut to prevent them from every flying again:

https://web.archive.org/web/20211113195112/https://theaviati...

but that part of the post has been removed from the updated version on the original website. The post now just says that one of the main points was identified as incorrect information. So the actual airworthiness of the ones in museums seems unclear. You can find a list of where they are on display here:

https://en.wikipedia.org/wiki/Grumman_F-14_Tomcat#Aircraft_o...

Not all were destroyed, couple were kept for museum, i took a picture with one at the navy station in Norfolk, Virginia

> Not just retired but all were destroyed

I think that's not true, there seems to be many fans of them and several on display https://www.f-14association.com/on-display/f-14-tomcats-on-d...