small mouse movements in wine-wayland don't move the cursor

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Please fill out the following:

• Sway Version:

  • sway version 1.10-dev (master from 2025-03-15 with HDR patches)

• Description:

  • To reproduce:
    • Use Proton-TKG master from the Proton master CI build here.
    • Launch the game with DISPLAY= %command% to start it in Wayland
    • Move the mouse around slowly

If you need a game to test with that works and is free (although large). The monster hunter wilds benchmark is what I used to test. It happens in The Witcher 3, Cyberpunk 2077, and basically any other title that will run in Wayland.

This bug is not present in plasma.