I am looking for an app for collecting mostly internal feedback from testing a web app.

I imagine this app to be able to open a topic raise some sort of unclarity or bug via a "thread", where you can discuss and resolve the problem, marking it correspondingly.

I'd like to add list of acceptance criteria to the topic and allowing multiple users to check them.

I'd like to upload screenshots, screen recordings and various files to it.

I don't want this app include into my product, I want to have it standalone.

I think I can make process work in Jira, but.. It does not really feel different than having collaborative document, where you need to play with formatting etc.

Maybe I am completely wrong and this is not the way of handling internal development feedback, in that case, are there resources on how to properly work with it? Current struggle is that discussion in Jira gets crazy and having an overview is really hard.

Does such tool exists? Any suggestions?