See pictures example. I propose:

1: Have links when press enter work, OR use markdown like SL profiles use for links. I think the first would be smarter and then people know what they are clicking.

2: Have listings + bio sections for merchants to add links in those sections using the above options.

Following this added suggestion-

With the wanting to be more modern, I remark on how we only have "blog + inworld" as clickable links. This day and age there should at least be something like "website" or other forms of media to supply support and resources to merchants. Most of our inworld messages get capped and so we require customers to use either nc's (not super reliable an easy to keep track of) and social media forms like brand discords, X/twitter pages, bluesky, tiktok, fur affinity, toyhouse, deviant art etc and other popular platforms. Instead of trying to add a box for all specific places- maybe allowing a box for us to fill out and name what the link is would be smarter. But I think having "blog" feels very odd and outdated. While yes some creators do have personal blogs or blogs they post on, I think would at very least be better to have website or something more generic. Plus, people already use that space to put their site, socials, or discord and leads consumers to be confused when they do click and less likely to click it when they see the word "blog."

Additional ideas/feedback on the panel on left side when visiting a store-

Allowing a button to say "redelivery" and then takes to redelivery page.

Allowing a button to say "contact/support" and then stores can put ANY way to be contacted for supp there.

Allowing a button to say "Blogger Applications" and allowing bloggers a way to apply for blogging to a store very easily!

As you can see from the above there is a lot of possible routes for people to add different links as buttons- so again, it's why I like the idea of merchants being able to add their own buttons- which could be in a form of a drop down of pre-set list and then button below having a link they can provide if you want to maintain more control over what people can add. But to start with allowing hyperlinks in listings + store policies and profile would be good first step to accessibility.