Notion gives you two imperfect options for sharing with clients:
Notion is designed for internal teams, not client-facing work. When you try to share parts with clients:
You end up creating duplicate "client portal" pages for every client, each with custom views pulling from other databases.
Every update requires manually syncing multiple views and pages. What starts simple becomes a tangled mess as you scale.
One wrong permission setting and your internal data could be visible to clients.
Even Notion's rich feature set lacks fundamental tools for professional client work:
No matter how much you customize your Notion pages:

Instead of hacking Notion into something it's not, use a platform designed from day one for client collaboration.
Professional client experience from day one
Everything Notion lacks for professional client work — built-in and ready to use.