Quick summary
Overflow occurs when the site title is extremely long and does not include spaces.
In addition to line-clamp-1, adding break-all seems to solve the problem.
Steps to reproduce
Set a long site title like the one below.
MyWordPressWebsiteMyWordPressWebsiteMyWordPressWebsiteMyWordPressWebsiteMyWordPressWebsiteMyWordPressWebsiteMyWordPressWebsiteMyWordPressWebsite
What you expected to happen

What actually happened

Impact
One
Available workarounds?
No and the app is unusable
Platform
Windows
Logs or notes
No response