This isn’t a binary answer since it depends on the target and how many people are actually doing it.

For example Disney+ boycott worked since an actual lot of people participated in it, it’s also easy to cancel a subscription, but on the other side, Hogwarts Legacy’s boycott didn’t do shit because almost no one cares that much about sending a message, and there was no substitute for the fantasy of living a virtual life in a magic school, yet.

While politics boycott need a large enough mass of people to accomplish anything, and this my may ruffles some feather but, violence is often needed just like what happened in Nepal.