Switching workspaces draws previous window's content on other windows' borders (possibly caused by scaling)

[nullzeta]

Hyprland version

Hyprland 0.50.1 built from branch v0.50.1-b at commit 4e242d0 ([gha] Nix: update inputs).

Regression

been using this wm only for 2 month and think it was present all the time

Describe the bug

If i open one (fullscreen) window_1 on a workspace_X and then switch to workspace_Y, where i have window_2 and window_3 in split mode (with gaps around each possible side) so that their borders overlap with the area of window_1,
the pixels that are occupied by these 2 windows' borders inherit the color of the pixels that were rendered for window_1's content at that place.

Reproduction steps

1. On workspace1: open any 2 windows in split mode
2. On workspace2: open browser(or whatever) with with a yellow image and press F11 to get 100% fullscreen
3. Switch to workspace1 and see that borders around the 2 windows are yellow

Important notes

This is the minimum config required to reproduce. systeminfo.txt contains full config but 100% of what's left is bind = blah blah and is not related to the issue.

monitor = , highres, auto, 1.33
general {
    border_size = 0
}
animations:enabled = false

• With animations enabled this doesn't happen
• This bug does not appear if i change config to use monitor = , highres, auto, 1 or monitor = , highres, auto, 2

Screenshot

open Wayland logo in browser -> F11 -> switch to another workspace

When i set monitor = , highres, auto, 1.33

When i set monitor = , highres, auto, 1.5 or comment out monitor = ...

System info and config

systeminfo.txt (this hyprland.conf is a result of me deleting everything (except keybinds) from my main config that does not cause the issue)

[nullzeta]

Just in case, here is my full main config:
config.txt

There i use gaps_* = 0 and border_size = 1.

Such config leaves no space for the described artifacts and as a result there are none, but ...
i use waybar and even while there are no artifacts between windows' borders, the "line" between opened window(s) and waybar gets "colored".