This is a simple guide on how to change notifications location for the Steam client
This will be ignored if the game has its own settings (I believe)

What you can do if you like is as follow:

1. open Steam folder open skins (if it does not exist create it)
   
2. Inside skins create a folder call it what you like
   
3. Inside the folder create a folder call it "resource"
   
4. Inside the folder create a folder call it "styles"
   
5. Go back to the main Steam folder
   
6. Navigate from there to resource → styles
   
7. Copy "steam.styles" and "gameoverlay.styles"
   
8. Go back to the styles folder you have created earlier
   
9. Paste the steam.styles and gameoverlay.styles in it
   
10. Open steam.styles
    
11. Search for "Notifications.PanelPosition"

At this point, you can set the location to change the value that is there by default to one of the following:

"BottomLeft"

"TopLeft"

"TopRight"

"BottomRight"

Note: the line with the "[$OSX]" means that will be the effect on an Apple device so if this is just for windows you can ignore that

Repeat the last steps with "gameoverlay.styles" to set the location for the overlay/in-game

after you set that all go to Steam → Settings → Interface
And set the skin to the name of the folder you give your skin (the first folder that you created)

Should point this will affect all games, and you may need to update the steam.styles every so often if the Steam client has an update that adds stuff to that file

There are more options and stuff you can do using skins, but this guide is made just to apply to one single thing for your enjoyment
If anyone like me to add something here or add a second kind feel free to let me know in the comments here, on my profile, or another way
Note that my profile will be the sure way for me to see it, comments here may be missed

You can also always drop a message for me in Discord