How to lower or change my TTY resolution?

How to lower or change my TTY (1-6) resolution? - System: Linux Mint 20.1 64-bit, kernel 5.4.0-74-generic, Nvidia proprietary display driver. /etc/default/grub:

GRUB_GFXMODE=1024x768
GRUB_GFXPAYLOAD=1024x768
GRUB_GFXPAYLOAD_LINUX=1024x768

/etc/grub.d/00_header:

#if [ "x${GRUB_GFXMODE}" = "x" ] ; then GRUB_GFXMODE=auto ; fi
if [ "x${GRUB_GFXMODE}" = "x" ] ; then GRUB_GFXMODE=1024x768 ; fi
if [ "x${GRUB_GFXPAYLOAD}" = "x" ] ; then GRUB_GFXPAYLOAD=1024x768 ; fi
...
set gfxmode=${GRUB_GFXMODE}
set gfxpayload=${GRUB_GFXPAYLOAD}

On UEFI, calling videoinfo for the list of supported resolutions: videoinfo" class="img-fluid rounded" style="max-width: 100%; height: auto; margin: 10px 0;" loading="lazy"> *** I feel desperate already as nothing I tried changes my laptop's native resolution of 3840x2160. *** After changes, these were called:

update-initramfs -u
update-grub