One of the recent Vanadium updates as of posting made me lose my Bookmarks, History, Download history, Settings. It also reset my PWA-s by making them into regular shortcuts. I think the whole browser basically reset.
I noticed because my PWAs started opening in a regular browser context as regular shortcuts starting yesterday.
A few weeks ago all my shortcuts and PWAs disappeared and the browser was reset two times. These bugs are extremely annoying and result in extreme data loss. I cannot ne the only one. Pixel 8a Stable.