Hello, KevinPark91.
Welcome to Microsoft Community!
When using Surface Pro 7, a Bluetooth mouse is typically more power efficient than a 2.4GHz wireless mouse with a receiver. This is because Bluetooth mice utilize Adaptive FM technology, which adjusts power consumption as needed to extend battery life. Additionally, Bluetooth mice do not need to occupy a USB port, which is an advantage for devices with limited ports like the Surface Pro 7.
If you need higher responsiveness and stability, especially for jobs or people that require quick reactions, a wireless mouse with a receiver may perform better.
These are some of the information I can share with you at this time, and if you think they can help you, you can mark them as answers by clicking “Yes” or “No”. This also helps to increase the visibility of valid information and makes it easier for more users in the community who have the same problem as you.
If you would like me to recommend some suitable models for your scenario, please don't hesitate to let me know what you need.
Best Regards.
Leo.L - Microsoft Community Support Specialist