MILD (minimally invasive ligament decompression) and/or LinQ?

hi everyone, I am a 72 year old female who has had low back pain for the last 20+ years. I have severe spinal stenosis in the L4 – L5 region. I have tried every injection out there to no relief I correct that I did have pain going down my left outer leg and the injections seem to help that no more pain, I’m very grateful for that.
A year ago I had the Vertiflex device inserted between L4-L5 - my recovery for supposedly a non-invasive surgery was awful and the worse part it didn’t help at all.
Went through all that for nothing.
My doctor now wants to do the MILD (Minimally invasive ligament decompression) procedure. This is where they remove some of the thickening ligaments around your disc, it creates more space between the disc supposedly reducing the pain. No large incision, no stitches just a band aid. I’m hesitant to do it because of my experience with the Vertiflex.
I was wondering has anyone had this MILD procedure-how was recovery, was it successful?
Also, doctor mentioned having the LinQ
Another minimal invasive surgery.
I would love to hear from anyone who had this procedure done and how you are doing today.
I appreciate any information you may offer.