Normal video testing is fine; links can be displayed when inserted, but it seems the live broadcast room cannot.
No web links in the live broadcast room can be previewed.
The only viable option in the live broadcast room is the iframe embed code. However, the size is not quite right, and parameter modification is not taking effect.
<iframe style="width: 700px;height: 400px;" src="https://www.bilibili.com/blackboard/live/live-activity-player.html?cid=8178490&quality=0" frameborder="no" framespacing="0" scrolling="no" allow="autoplay; encrypted-media" allowfullscreen="true"></iframe>
Test image:
Can Bilibili live broadcast rooms support link insertion or embed code adaptation to page size?