As great as it can be and super friendly and helpful dev, but many senarios where it just doesn't work and can't be made to work, mostly google sites such as the gmail screen and other google screens.
Unfortunately, that's where my deadname most often is, so the extention functions as more something nice to have then a functional deadname remover.

im not trans I just use this so I can change y/n into a different name in fanfics

This is great except for the fact that it changed my name on an email I sent for some reason. Given that the email was to my professor, it was kind of awkward. Five stars for removing my deadname, down to three because it did a little too good a job.