Userscripts are sick addons for the web. Chatbots, quality of life improvements, extra features you wish were native, etc. Orion doesn’t support it and the extensions that do are extremely hit or miss (mostly miss).
Gear Browser has native support for userscripts but locks it behind a paywall. The Safari Extension on the App Store works flawlessly in this regard. Here’s some examples to hopefully get the ball rolling on the UI.