Performance Impact of Embedding Iframes in Obsidian

I have a setup where I embed web videos into Obsidian notes using <iframe> tags. Specifically, I have 1,000 notes, each containing an embedded video via an <iframe>. I’m seeking clarification on the following points:​

  1. ​Resource Consumption Without Opening Notes: If I don’t open any of these notes after launching Obsidian, will the application still consume significant system resources due to these embedded iframes? Some AI responses suggest that Obsidian might pre-process such notes upon startup, leading to resource usage even without opening them.​
  2. ​Resource Consumption After Closing Notes: If I open a note containing an iframe and then close it, does Obsidian continue to consume resources related to that iframe in the background?​
  3. ​Resource Consumption from Previewing Notes: If I preview a note with an iframe using Obsidian’s backlink or hover preview features and then close the preview, does the iframe continue to consume resources?​

Understanding how Obsidian handles embedded iframes in these scenarios is crucial for optimizing performance. Any insights or official documentation references would be greatly appreciated.