Hehehe, I'm late, but the Marvel models I made are here uwu
The model it is made in Blender 3.6.X LTS
Well the basics you need to know is that they require the MHX and Diffeomorph addons. Official Website (this addon is a bit mandatory for you to use the bones, because some people have already mentioned to me that they move the bones but not the character, so yes, please download the mhx)
In case you have any problem or doubt, you can contact me by twitter or right here and I will be glad to help you ^^
Rules
It is forbidden to sell the model on your own site or store.
Prohibited its use for content with minors or political content.
If you use it please credit me, here is my Twitter , bluesky , DA and Itaku <3