This video might be handy on connecting APIs to Webflow. You can just replace the endpoint with your Bubble endpoint. I’m assuming your Bubble endpoint will be public.
Otherwise, you can certainly do most of what you need in Webflow in Bubble. I used to be overwhelmed with Bubble’s design system but I’ve taken a “masterclass” and I’m happy with the design chops of Bubble. I’ve summarized some learnings here.