This is happening only on Linux, on my Windows pc everything is fine. Both on DX11 and Vulkan, doesn't matter. Very annoying and unpleasant in real game. Here's what normal stats look like:

When opening and closing shop there's 2 visual stutters that show on graph (it even shows 0 fps and infinite frame time in mangohud):

Another two stutters when pressing and unpressing the Escape menu:

Smaller spikes when pressing and unpressing Tab, but they're still present:

This might happen only on some systems, however I've seen people in Linux channel on Deadlock's discord describing similar experience on different hardware and distros. Anyway, my specs:
OS: CachyOS
Kernel: Linux v6.19.9-1-cachyos-bore
DE: KDE Plasma 6.6.3
WM: KWin (Wayland)
CPU: AMD Ryzen 9 5950X
GPU: AMD Radeon RX 6800 XT

When opening and closing shop there's 2 visual stutters that show on graph (it even shows 0 fps and infinite frame time in mangohud):

Another two stutters when pressing and unpressing the Escape menu:

Smaller spikes when pressing and unpressing Tab, but they're still present:

This might happen only on some systems, however I've seen people in Linux channel on Deadlock's discord describing similar experience on different hardware and distros. Anyway, my specs:
OS: CachyOS
Kernel: Linux v6.19.9-1-cachyos-bore
DE: KDE Plasma 6.6.3
WM: KWin (Wayland)
CPU: AMD Ryzen 9 5950X
GPU: AMD Radeon RX 6800 XT