The last time I drank from a baby bottle was when I was 6 years of age as I spent the first six years of my life as a infant/toddler or being treated as one, and although it was a largely great time there where some ups and downs along the way, see my previous replies for more information if you haven't already done so.
Skipping forward to three/four years ago in 2019
I did try cow & gate again and found it tasted like carnation milk which I tend to like anyway.
I even found a sports bottle that kind of resembled a baby bottle, however all the baby bottles I found on the shops alas where too small for me, I was sed the bottld until it finally got broken in the dishwasher it was plastic not glass.
I suppose I will look online as Bambino and othere are selling adult sized baby bottles something that I might look into purchasing in the future provided they are not too expensive and are easy to clean, however it would have to be plastic because I don't want it to break.
If I found such an item on sale, then I really would like to fully regress back to being a baby/toddler again at some point in my life and baby bottles/sippy cups are on my list of things to buy, along with diapers wipes and all the other nessisary supplies if and when this happens.
Anyway I hope this helps awnser your questions.