I'm a PhD student who likes to work in the lab on weekends because I'm more focused and can work longer at my desk which is nicely set up.
We've had two new Asian PhD students (I'm Asian as well) who now come in on the weekends as well. They both practice 'speaking English' by using some popular apps on their laptops and while I admire the effort, most of my afternoon is me trying to get stuff done while I hear words like 'couch', 'giant merger' or 'determination' or any other random words talked out loud and with heavy enunciation. The speaking practice goes on for well over an hour.
My question is, is it too rude for me to ask them to maintain quiet in the lab or should I accept that any workplace has some 'noise' at any given time?