Related Linear issue here.
This diff selects the thread name when clicking the edit button in ThreadSettingsName, and also allows the viewer to view the entire thread name on multiple lines instead of only viewing a fixed portion of the thread name on a single line.
I'm pretty sure selecting the text on clicking the edit button was already meant to occur because the selectTextOnFocus prop is set to true already:
But this wasn't happening because the only prop that's missing is the multiline prop.
According to this GitHub comment, setting the multiline prop to true can solve the issue of selectTextOnFocus not doing anything.