Can’t download my videos from Google Drive to photos

Okay, so I have been experiencing an issue lately with downloading my videos from Google Drive to Photos.

So I am a video editor and I edit my videos on capcut and I filter them through topaz which is a video quality enhancer. After all of that is done, I sent the video to myself through email and try to download it to my photos so I can post it on Instagram. Keep in mind, my files are about 70-120mb as in file size. They are all mov files too.

But the problem for me seems to me that I cant download/save the video to my photos

What I have tried:

Open the Google Drive App

Click on the three dots

Click send a copy and hit save video

Also, I have tried to click the download button and that also doesn’t work

What I just listed are things that I have tried but don’t work!

Please, I would appreciate the help!