Thanks Snehal for your detailed points, listing common software used and their replacements. I myself am from academia and interested in campaigning against the proprietary software used in education.
I agree that there is much more than just videoconferencing tools when it comes to proprietary software being used in education. That document about videoconferencing I circulated earlier in this group was for different purpose and is a part of series of articles we are posting to raise awareness in general. For example, https://fsf.org.in/article/better-than-whatsapp/ was an article about which instant messenger systems respect your freedom. Different types of software and systems require different assessment and concepts to judge if they respect user's freedom. An article on instant messengers will be based on different concepts than an article on videoconferencing.
I have noted your points and would like to add this point-- Educational institutes usually provide email servers hosted by proprietary services such as-- Google, Microsoft. For example, IIT Madras' email servers are hosted on Gmail(I would prefer not to mention any names in the article but taking names in this mailing list seems fine to me). For the points on avoiding WhatsApp and Zoom, we can refer to our articles on these topics for details.
I have not used Moodle myself, so to write about it, I would need help from someone who used it or use it myself.
There are other practices like-- when I went to fill the GATE exam form, I noticed that the website installs Google Analytics cookies in the visitor's browser and they have made it mandatory to provide a phone number(some people don't want to carry a surveillance device in their pocket) and email(I am personally fine with providing an email address but it would be better if email is not mandatory). An exam form is a data collection front-end but it should not require more data than required (they already ask your data about your previous degrees, photo, signature). Why should I give away my data to Google in the process of filling an exam form?
As you mentioned that your institute works on fully free software and you can include a statement by your head. That would be a really good idea. I suggest you to include that.
I have started a pad here https://pad.disroot.org/p/educationfreesoftware which we can use to collaborate. I request you to please propose a title and start with a short summary of what the article says.
Thanks a lot!