This was my understanding about surgical masks pre-covid, but I plan on wearing a better-sealing (KN95, KF94, N95) on public transportation, airplanes, and in busy places like supermarkets for the rest of my life. If I can avoid even 10% of the colds or other viruses over the course of my life it seems like a very worthwhile tradeoff.
Every year I travel to the east coast for Christmas and every year except this year I've gotten sick during travel. I'm happy to normalize masks cause I want to wear them on planes to avoid feeling miserable the whole time.