The 35mm feeling is more than grain.
Small-format film often feels lively because color, grain, and contrast are all visible at once. Warm highlights and slightly imperfect shadows can make family photographs and travel snapshots feel immediate without forcing an artificial old-photo overlay.
Try the default recipe on a daylight frame first. If yellow walls or warm skin begin to drift orange, lower the strength. For clean scans and phone photos, a little texture goes further than expected.