According to ESPN's Adam Schefter, QB Jimmy Garoppolo does not need to undergo foot surgery, dodging a Lisfranc injury. With a best-case rehab process, Garoppolo could return in 7-8 weeks for a late playoff run. (Adam Schefter on Twitter)
Garoppolo managed to avoid a 100% season-ending injury, though he may not play again depending on how his rehab or the 49ers' regular or postseason go. Regardless, for fantasy purposes, his season is over. QB Brock Purdy seems to be the starter going forward, though they also signed QB Josh Johnson. Neither should likely be starting QBs in fantasy going forward.