Terms and conditions for the use of the plugin

A bit unusual question maybe… I recently received an email asking about T&C for my free plugin:

Where can I find the terms and conditions that apply to the use of this product?
Also, is third-party OSS included in this product?;
If included, please provide a list of the OSS and the applicable terms and conditions of the OSS (MIT, etc.).

I honestly have no idea how this legal stuff works and I assumed there are some common terms provided by Adobe, but couldn’t find. Is there maybe some template I could use and add terms to my plugin web page? Also, should I list all dependencies I use in my plugin?

I’d appreciate any suggestions and hints :pray: