Hello @UlfLaursen, welcome to Webflow and the forums!
This is actually achievable easily in Webflow. Go to the Add Panel and bring in a video element into the canvas. Then simply paste in the url to the channel, playlist, or individual video. For channels specifically, it seems to pull in the latest 100 video if there are more. You can style the video element in the canvas just like a div element.
This doesnt seem to work with a youtube channel, is there a way to embed the entire channel using the webflow video element? or do i have to use a third party?
when i try to use the webflow video element, it tells me that the link type is invalid
I would recommend you to try out this YouTube widget. It might be very convenient for both of you: it allows you to create colorful galleries, show videos and set video channels on your website. Also it is adjusted for all screen resolutions and will look perfect on any device!