my /usr is 10G and /var is 5G, I would say check whats is consuming space on /usr and /var to make sure there isn’t a problem, with that said I don’t have separate partitions for for this exact reason, I only separate root from boot because I’m running full disk encryption.
amazing video. first time I seen this channel but I’m impressed, not only with all the effort for gathering the data but also with the video itself, its one thing to do all this work of implementing the code and playing the simulations but presenting all this data in an entertaining way is just as hard, if not harder.