Hello @Hemashree,
Unfortunately, the url won't work unless it's using the stream(classic) version url. As there was an update which deprecated it, won't be a good idea to use it. Currently, the new version is stream (on sharepoint) which doesn't provide when sharing a stream url so the stream control in powerapps won't work. Not sure when they'll focus again on updating the stream control as it's not on the roadmap for releases.
As alternative, you can include a button and use the Launch function to redirect to the url. That will work fine.
To get the url, got to microsoft365 and open the stream app. Once there, look for the video and hove over it and click on the share icon or more options and got to share which will display the copy link option.
Once you click on it, it will display the option to copy the url which you will use on powerapp and also settings where you can adjust the permissions. Please, validate on the settings the proper access and you can also restrict the download of the video.
You can also use the video control, but I won't suggest it as for that you have to upload videos which will increase the size of the app and lead to performance degradation.
Hope this helps clarify the doubt, let me know in case you're still facing an issue within it.
Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.
