Here is a .gif version of the scene in I Smile Back
Here is Sarah’s full-frontal nudity in Take This Waltz (2011)
Sarah Silverman in Masters of Sex, s2e6 (2014)
Here is a topless pic she posted to IG in 2019. (It was soon deleted.)
Here is a bare butt shot she posted on IG in 2021. (IG left that one up. They are generally OK with bare booties.)
There were some purported Sarah nudes leaked in 2021. I don’t know whether they are genuine, but if that full frontal is real and recent, she looks spectacular for a 50-year-old person of our species.