https://redf.in/sITdQm
https://www.zillow.com/homedetails/26-Pinewood-Ct-San-Mateo-...
This one has a listing from Jan 2022 that is missing in Redfin, but shown in Zillow:
https://redf.in/hX47mx
https://www.zillow.com/homedetails/4922-Leigh-Ave-San-Jose-C...
I cannot tell if this is intentional or not, but in all cases, Zillow has shown more data than Redfin.