Duplicate the Figma file. Add your logo to the relevant section and export it.
The favicon is important for the SEO score of the pages.
https://www.figma.com/embed?embed_host=notion&url=https%3A%2F%2Fwww.figma.com%2Ffile%2FwlGEr5J8mTn0YXVv7R9iLM%2FProduct-Hunt-Launch-Kit-%25E2%2580%2593-by-Producter%3Fnode-id%3D1%253A151
https://www.figma.com/embed?embed_host=notion&url=https%3A%2F%2Fwww.figma.com%2Ffile%2FwlGEr5J8mTn0YXVv7R9iLM%2FProduct-Hunt-Launch-Kit-%25E2%2580%2593-by-Producter%3Fnode-id%3D1%253A163
Community Profile: https://www.figma.com/community/file/1085307607953678024/Product-Hunt-Launch-Kit-–-by-Producter