Dear Tim,
Good day! Thank you for posting your query in our community.
For your requirement with advanced branching in Forms, you can try the following steps:
- Put the main question in Section 1, create multiple sections with each option of the main question as the section title, then insert questions in each related section.
- In Section 1 with the main question, click … and select Add branching. Then select the corresponding section in the box after Go to for each option of the main question.
- If you want to create other questions like the main question in Section 1, repeat the above steps, and select the next section in the box after Go to for each option of the section.
- If you don't want, you need to select "End of the form" in the box after Go to for each option of the section to prevent users from seeing the "Tech" questions on the form if the checkbox wasn't selected.
Additionally, for your other requirement "create a flow", you may need to use Microsoft Power Automate, so my suggestion is to post on the dedicated Microsoft Power Automate Community, the members and engineers in this community are more experienced in this area. You will get a more detailed and professional answer to your problem there.
If my description is not clear to you, please feel free to post back.
Sincerely,
Jazlyn | Microsoft Community Moderator