I think that Philip's requests are really well done but what happened in seven years ??

Most important for me:

1 Groups inside Groups

2 The ability to set groups as dials

3 Possibility of editing a dial  adding text, links, images.

So in my case this is the complete pathName of 00000035 file:

"C:\Users\MyUserName\AppData\Local\Microsoft\Edge\User Data\Default\File System\055\p\00\00000035"

and I suppose that I can delete bookmarks deleting  files in the above path without problems ....

This is useful for advanced users ad allow to manage bookmarks backups formatted in a well designed representation.

I simply made a backup and searched in "C:\Users\MyUserName\AppData\Local\Microsoft\Edge\User Data" specifiying current date as search string (in my case 05/04/2022 (IT) but in english 04/05/2022 ecc.).

I then ordered for date.

As you can see ther are two files 00000035 and 00000034 with json like contents.

The file 00000034 contains an javascript  object array with bookmarks:

[{"id":"21062","title":"vaio Angela user leonardo danza","index":0,"type":"folder","date":1653031637411,"global_id":"nIK950XUovSHTdtcu9IoVF2JkkRdcPc6", "parent_id":"toolbar"}, ...]

The file 00000035  contains backup datetime and total bookmarks number;

{"time":1653037363957,"count":2414}