Send: Open-source fork of Firefox Send

As a side note, you can also simulate various network problems in the linux kernel via tc: https://www.baeldung.com/linux/network-failures-simulation

I based off someone's quick notes and made it a ready to use script, in case it's useful for anyone:

https://github.com/j1elo/slow-network

Your article is very interesting and details some practical use cases, thanks! I will read it to see if there are any new ideas to incorporate.