A web-based tool in Microsoft 365 that enables users to quickly create surveys, quizzes, polls, and feedback forms.
What you show on the screenshot above is the "normal" behaviour for very short texts I assume.
For question description "QuestionA" and subquestion "b" it will generate the Excel result column header "QuestionA.b"
The problem I am facing occurs if the question description is very long.
Instead of "QuestionA" try it with the following, which was long enough to show the problem in our case:
"Trunk-based Development
Trunk-based development emphasises frequent small merges into the main branch, reducing complexity and allowing for quicker releases. It leads to shorter development cycles and less complex merges, promoting agility with smaller, more frequent code integrations, minimising the need for stabilising efforts and code freezes."