How to cite Stack Overflow surveys
You can either:

Include this as a footnote.

Use this website https://www.bibme.org/bibtex/website-citation to generate website citations for the Bibtex generic citations.


The following is I generated for the Stack Overflow Developer Survey 2020.
@misc{stack overflow, title={Stack Overflow Developer Survey 2020}, url={https://insights.stackoverflow.com/survey/2020}, journal={Stack Overflow}}