"Begin disabling installed extensions still using Manifest V2 in Chrome stable"

If anyone has any guides or blogs related to migrating away from Chrome for a multi-decade user (thousands of bookmarks, saved pages/read later, etc.) I would sure be interested.

Every time I try to migrate my very large bookmark collection to another browser, it either misbehaves and partially loses some data or fails completely.

>Every time I try to

It would be good to know what not-chromes you have tried, so as not to suggest 'x', which may have not worked for you.