Share USB Keyboard with Mac and PC

[jagooch]

I have a MS Sculpt Keyboard.

I have 3 computers

• Employer Macbook Pro for productivity
• Personal M1 Macbook Pro for productivity.
• Personal Windows PC, primarily for gaming.

Desk setup:

• Display: I have an Super Ultrawide display with 2 DP and 1 HDMI input, audio out, USB. I plug the PC in directly, and the Mac goes through a USB-C to DP converted to the display.
• Kb/Mouse - Logitech MX Kb/Mouse can switch between all 3 computers.
• Audio: Monitor speakers connected to display’s audio out. It’s only 2.1 stereo but it works.
• Other Peripherals: Scanner, USB drives, USB Camera ,etc are connected to a Caldigit Dock, which only the Mac’s can connect to via Thunderbolt. The PC doesn’t have access to them.

The kb/mouse setup isn’t ideal because I want to use the Microsoft Sculpt keyboard that I got as a gift with all 3 computers. It will only connect wirelessly to the USB dongle that it came with. It doesn't have a USB port.

If I put the dongle in the Caldigit dock, work and personal macbooks can use it as they are connected ( but only one at a time ) to the dock.

If I put the dongle in the PC, it works but the Mac’s cannot access the keyboard.

I’m happy with the switching the display using a switch, but I need something for the MS Sculpt keyboard. Ideas?