Brightness slider does not work on Fedora 31 Gnome

The brightness slider does not change the brightness on my laptop (Acer Aspire 4810T, Intel integrated graphics). Looking around, the closest thread that I found was this. Adding "acpi_backlight=vendor acpi_osi=linux" to /etc/default/grub (as suggested here) did not work, and neither did creating /etc/X11/xorg.conf.d/10-brightness.conf. Using the xrandr command does work:

xrandr --output LVDS-1 --brightness 1.0

Though this understandably only works when I am using X, not Wayland.

What could possibly be done to fix this?

One of the Wayland methods that similar to xrandr’s --brightness flag.
    Arch Wiki’s list of backlight utilities that works with Wayland.

PS:  I’d issues with the Gnome brightness slider only with an external monitor (even if built-in is switched off, though).