Thanks Basj,
My .groupy looks pretty similar to yours, we're both using telegram desktop (not MS app store version):
[Group]
GroupCount=5
GroupLeft=-1083
GroupTop=987
GroupRight=3
GroupBottom=1657
GroupMax=0
Locked=0
[GroupyEntry1]
OwnerProcess=C:\Users\xxxx\AppData\Local\WhatsApp\app-2.2123.7\WhatsApp.exe
NewTabName=
RunElevated=0
NoPatternMatching=0
CommandLine=
WorkingDirectory=C:\Users\xxxx\AppData\Local\WhatsApp\app-2.2123.7
Target=C:\Users\xxxx\AppData\Local\WhatsApp\app-2.2123.7\WhatsApp.exe
MatchingClass=Chrome_WidgetWin_1
[GroupyEntry2]
OwnerProcess=C:\Users\xxxx\AppData\Local\Programs\signal-desktop\Signal.exe
NewTabName=
RunElevated=0
NoPatternMatching=0
CommandLine=
WorkingDirectory=C:\Users\xxxx\AppData\Local\Programs\signal-desktop
Target=C:\Users\xxxx\AppData\Local\Programs\signal-desktop\Signal.exe
MatchingClass=Chrome_WidgetWin_1
[GroupyEntry3]
OwnerProcess=C:\Users\xxxx\AppData\Roaming\Telegram Desktop\Telegram.exe
NewTabName=
RunElevated=0
NoPatternMatching=0
CommandLine=
WorkingDirectory=C:\Users\xxxx\AppData\Roaming\Telegram Desktop
Target=C:\Users\xxxx\AppData\Roaming\Telegram Desktop\Telegram.exe
MatchingClass=Qt5152QWindowIcon
[GroupyEntry4]
StoreApp=1
OwnerProcess=91750D7E.Slack_8she8kybcnzg4!Slack
NewTabName=
RunElevated=0
NoPatternMatching=1
Target=91750D7E.Slack_8she8kybcnzg4!Slack
MatchingClass=Chrome_WidgetWin_1
[GroupyEntry5]
StoreApp=1
OwnerProcess=Microsoft.YourPhone_8wekyb3d8bbwe!App
NewTabName=
RunElevated=0
NoPatternMatching=1
Target=Microsoft.YourPhone_8wekyb3d8bbwe!App
MatchingClass=ApplicationFrameWindow