Disabling Steam Chat's automatic popup at Windows login startup
This is fixed in the latest beta, and should be a part of the next public client update. announcement:
Friends & Chat - Beta Client Only
- Added 'Do Not Disturb' mode. When selected, the user will receive no notifications from friends or groups, incoming chat messages will not open new chat windows or play an incoming message sound.
- Added 'Offline' as a selectable status. This will log the user's client out of Steam Friends and the user will appear as offline to their friends.
- Added the option to not automatically log into Steam Friends at Steam Client startup.
- Fix for inadvertently opening the friends list at client start even though it was previously closed when Steam was shutdown. Please report any further instances of this bug in Steam Client Beta Discussions.
Friends & Chat - All Users
- EXIF data within JPG images is now stripped on upload.
- Clicking your avatar at the top of the friends list now takes you to your profile.
- Fixed not being able to close the friends list or chat windows when in a disconnected state.
- Added /quote for formatting text as a block quote.
- Friends will now have a special indicator when displayed in a group member list
- More compact chat entry space and chat tabs when Compact View is selected. Fixed a bug where extra space was being added to chat lines when only one line was sent.
- Embedded videos and images start a little smaller, you can still scale them up by dragging.
In a way it's nice that they're mostly using pure HTML/CSS/JS for the new chat as it's very easy for them to add new features in comparison to the old client, but they really should've put more work into porting existing features & UI settings.