Reverting VTE on Ubuntu 21.04 to version 0.62.0-1ubuntu1 from Ubuntu 20.10 helps.
I suppose that other VTE-based applications are broken in the same way.
So someone with permissions should revert VTE to the above version in the hirsute archive. Without this all VTE-based terminals will transform to useless toys.
Reverting VTE on Ubuntu 21.04 to version 0.62.0-1ubuntu1 from Ubuntu 20.10 helps.
I suppose that other VTE-based applications are broken in the same way.
So someone with permissions should revert VTE to the above version in the hirsute archive. Without this all VTE-based terminals will transform to useless toys.