Question on Web Content Filtering and CASB enablement

SB V  -  Feedback inline:

1. Can we map the devices groups created in Defender portal to CASB? Because we created a device group and it wasn’t shown in CASB => No
2. Is it possible to have user based policies in CASB not only computer based ones? A user might need to switch computers so we will need to block the computer applications based on the user => We have heard of this request before and encourage you to file a feature request for this with the Microsoft Defender for Apps and Microsoft Defender for Endpoint teams.
3. Is it possible to block WeTransfer download but allow the upload only? => The Microsoft Defender for Apps team might be able to provide guidance - https://techcommunity.microsoft.com/t5/microsoft-defender-for-cloud/bd-p/MicrosoftDefenderCloudApps