No longer true for new user/new account at the moment. New account gets limited 5 ports.
And to point out, technically it’s 20 ports for old users, not indefinite.
I’m doing academic research myself, if not for scihub I don’t know how I would survive this academic world. And now every time I try to look for papers, I go for arxiv, thanks to the authors who made their paper available here, such a great impact to the academic research world.
Invidious+Yattee is how I roll.