Hello Little Jeremy,
Welcome to the Microsoft Community.
Thank you for your feedback. Based on your description, it seems there is an issue with the rendering of the newly updated mouse cursor style in Windows. For the Edge browser, you can open Edge, type edge://flags in the address bar, search for "Choose ANGLE graphics backend," select "D3D9," and restart the browser to see if the issue is resolved. You can also check if other browsers or applications have similar settings to modify the renderer.
Additionally, you can go to other mouse options >> Bluetooth and other devices settings, and change the cursor style to "beam_r" in the Pointer Options tab. Since version 24H2 changed the default style, reverting to the previous style might solve your problem.
I hope the above information helps. If there is any progress with your issue or if you have any other questions, feel free to reply to me. I am happy to continue assisting you.Thank you for visiting the Microsoft Community. I wish you good health and a happy life!
Best Wishes,
Amos.L - MSFT | Microsoft Community Support Specialist