Hi Clairee,
I am not sure if there is a way to search by link instead of the file name. I will check with the team. However, If you open the link shared above by Rishabh. It will show up all your files and when you click on the 3 dots. You will see the "Copy Link" option. Once you copy the link, you will get the URL of your file, and then you can match the URL with the link you are trying to search. I know it's a bit tedious task. One more thing you can try, if you have recently modified or made updates to the file you are searching then you can also filter that out using the option shown below-


Hope it helps.
Thanks,
Harshika