Slow browser startup [Reason found, Potential Bug? Pls dev]

I’ve done some digging

After a binary search I found out that deleting the sync data folder inside of Default fixes the issue.

sync data contains these ldb files


Deleting any single one of them causes a regeneration with no more ldb files.

I’m not sure exactly what these files are and what they contain
Reading in text form it’s got some website information there

Perhaps there is a bug in syncing?

I’m using this workspaces feature which opens a new window with a new tab group I’m not sure if it’s exactly duplicates but I do see the same tab group multiple times but they have the same windows shown when hovering