This is what you could do to identify and list games you wrote a review for.
Add a custom tag to your library called REVIEWED
Browse your library and tag all games you reviewed
Next you could download a Chrome extension called
Link to Text Fragment Once installed browse the store pages for the games you tagged. To make the following work you have to set the number of reviews per page to 60. Use the browser search function (Strg/(Ctrl)+F) and input your nickname.
Highlight your nick or the review title and then right-click on it and select
copy link to selected text The link will look like this: gog.com/game/syberia_the_world_before_prologue
#:~:text=mori_yuki Bookmark the review page pressing (Strg/(Ctrl)+D)
In your bookmark options click on
More ... and copy the link there
In order to make this work you got to add a number as you can see in this example
gog.com/game/syberia_the_world_before_prologue
#1:~:text=mori_yuki
Save your bookmark and you should be taken directly to your review
This should also work in Vivaldi if that is the browser of your choice and maybe Edge. Firefox got a custom extension also but it doesn't really work. With Vivaldi there should be an option to enable scroll to text fragment which doesn't work in Chrome 93 or has been disabled/removed. I mention this because when this option is enabled you don't have to add a number after the # in order to make it work. In case it isn't enabled copy the following into your browser bar vivaldi://flags/#enable-text-fragment-anchor For Edge and Chrome you would have to search for a working solution in case you decide using the extension:
Enable scroll to text fragment