Is Bounce Rate Effect in SEO?
Bounce rate is the factor you need to increase conversion rate and do A/B testing. If your content is strong, then online visitors can stay on your pages, and if they can get relevancy, they can stay on your pages, and your bounce rate is less when customers visit one landing page to another. Google also counts your exit rate. It would help if you created a website layout as responsive and UX design base and need a call to action button as a user can get queries and get a proper answer. SEO can get organic traffic to reduce exit rate.

Is Bounce Rate Affect SEO?
Yes, it affects SEO. As per Google bot thinks your user experience is bad.