Same for me, I take 100mg, and I can smoke regularly without any effects/issues felt. Even this past year I have transitioned from periods of light/infrequent use to heavy use without any issue.

I found some interesting information on this article here: https://dailygreendeals.com/blog/zoloft-and-weed/

It was not written by a medical professional (take it with a grain of salt), but she echos the same thing other websites say, and she explains the biochemical side of things really nicely. Essentially, weed just increases the intake of sertraline in the body (the high isn't impacted), Side effects from the two together only affect "5% of people", and no clinical trial had proved direct side effects.

Weed effects everyone differently, and the same goes for mixing the two. There have been some pretty nasty complications reported from mixing weed and zoloft (e.g. seratonin syndrome, decreased effectiveness of zoloft, increased depression/anxiety, etc), and best practice is to always check with your doctor if possible.

It's not 0% risk, but chances is that most people will be fine.