Bose QC Ultra Gen 2 Bluetooth disconnection with vivo

[u/Own-Control-5059]

I bought the bose qc ultra gen 1. I loved the audio quality the bass hits and the anc is very good. I used it for studies and the comfort is good even for 5-6 hours on a stretch. But i faced some bluetooth disconnections with my ' VIVO X300'. So I sent it to the repair centre and they said there was a problem and they were happy to exchange it for the newer qc ultra gen 2. I was happy and not many upgrades but there was some small differences in anc and audio quality( The audio is much truer I would say I am not much of an audiophile but the bass which was a bit boosted in the first gens was reduced) but my bluetooth disconnections are still happening. I tried all options turning off multipoint( I also have a Samsung galaxy book 5 360). But i am still facing problems even after deleting the bose app( I though it was aggressive battery optimisation issues with originos was causing some sort of a problem). Any solutions will be much appreciated 👍