Where Safari 15 store tabs opened in groups?
"Regular" tabs (tabs not opened in groups) are stored in ~/Library/Safari/CloudTabs.db but tabs opened in Tab Groups aren't there, so where are they stored?
Solution 1:
Safari has another database file in ~/Library/Containers/com.apple.Safari/Data/Library/Safari/SafariTabs.db. It has a table bookmarks which has a row for each tab group entry. There is a parent column which has the id of the tab group itself.