Signs tech debt has become a limiting factor and how to address the problem.
Technical Debt is the refactoring effort needed to add a feature non-invasively.
Toward a Galvanizing Definition of Technical Debt https://michaelfeathers.silvrback.com/toward-a-galvanizing-definition-of-technical-debt
"Technical Debt" is a phrase I consciously avoid using because people only hear the word "Optional".
Instead I try to find the appropriate Non-Functional Requirement, or System Quality Attribute that is failing due to the Tech Debt and use that word instead.