I've been on Estraderm, Estradot and Everol. I'd confirm that each seems to have different absorption for me. I was very happy with Everol, but during supply problems had to take what was available. I didn't like Estraderm - mostly they were so large and so inflexible (I'm on 100mcg, and they are HUGE). Everol were similar size but didn't feel as obtrusive. Estradot initially didn't stick well but once I found where they work for me (high on buttocks, if you must know!) I found them really good, and was even able to drop down to 75mcg....but I would say play around with location and with different brands - difficult I know during lockdown to get different prescriptions, but finding right ones for you is the key....