It appears that some time around March 2019 the option to restore the title bar through a setting in the IDE was restored. I can confirm that the option remains in the latest release and preview versions of Visual Studio as of June 2019.
Go to:
Tools > Options > Environment > Preview Features
and untick
“Use compact menu and search bar (requires restart)”
Then click “OK” and restart Visual Studio.
If the setting gets removed again, it may still be possible to fall back to editing the file CurrentSettings.vssettings
. Change:
<PropertyValue name="IsMinimalVsEnabled">True</PropertyValue>
to
<PropertyValue name="IsMinimalVsEnabled">False</PropertyValue>
Look for the file in %LOCALAPPDATA%\Microsoft\VisualStudio\16.0_xxxxxxxx\Settings\CurrentSettings.vssettings
(where 16.0_xxxxxxxx
will be the version you have installed).
VS2022 Update
The setting is now named UseMinimalMode
in CurrentSettings.vssettings