Some time ago @Yuki (雪亮) ?? ?
posted about a new open source and privacy respecting Android ROM that looked interesting to me on first superficial look. Problem was: I had lost my note and did not find that original posting too.
I just found that ROM, it's by the original founder of Mandrake and developed as a non-profit organization. Last time I saw that it is available for my Oneplus One. Will have a closer look whether I will attempt the move from lineageOS to /e/. The alternative would be lineage without Google apps. https://e.foundation/