Hi , I’ve seen some folks come off oxygen—especially if their need was short-term or related to a flare-up. Everyone’s situation is different, though, so it’s something to work through with your doctor.
If carrying your current setup is a hassle, I recently came across the VL-2 portable oxygen concentrator from Varon. It’s super lightweight (just 3.3 lbs) and has a carry handle and battery options, which could make staying active a bit easier. Wishing you the best on your journey! You can check the product here
https://varoninc.com/products/vl-2?sca_ref=8679947.O5bZqT47as