Do channel partners get a website of their own?

Yes, free, and it takes about a minute. Your portal has a Your website screen: enter your brand name, pick a short web address and give your WhatsApp number, and you have a live page carrying your name and your prices with ours nowhere on it. Every button opens a WhatsApp chat with you. Send the link to a restaurant the same day — there is nothing to deploy and nothing to wait for.