Best way to segment people in a flow/campaign

Hi,

What’s the best way to segment people in a flow?

I want to add one email in my welcome flow message, having people to choose which category they are most interested in, so that later I can send them more personalized message. For example, duvet covers/ sheets/ pillows/etc.

What I am currently thinking is to make each option into a photo and using  property update function to link to each one click. The only concern I have is what if people choose more than one categories of interest. Would it overwrite?

Let me know your recommendation or best practices, and thanks Klaviyo community as always

R