What a link in bio page does well
A bio page is excellent when the visitor arrives from social media and needs a small number of next actions. It keeps the experience mobile-first, reduces navigation choices, and can connect several external platforms through one stable URL.
What a full website does well
A full website gives you space for detailed service pages, long-form content, extensive portfolios, ecommerce catalogs, location information, educational resources, and search-focused pages.
When a bio micro-site can be enough
A focused micro-site may be enough for a creator, independent professional, photographer, restaurant, beauty provider, or small business whose main needs are links, booking, shopping, contact, social profiles, and a concise introduction.
Why many brands use both
The two formats solve different problems. Your full website can support discovery and depth, while the bio page becomes the fast mobile landing experience for social traffic.