my simplepanelrc fonts
SP_FONT_1="DejaVuSansMonoForPowerline Nerd Font:pixelsize=11" # main font
SP_OFFSET_1=-1
SP_FONT_2="DejaVuSansMonoForPowerline Nerd Font:pixelsize=11" # iconic font
SP_OFFSET_2=-1
#SP_FONT_3="-misc-knack nerd font-medium-r-normal-*-18-*-*-*-p-*-iso10646-1" # extra font
SP_FONT_3="-misc-anonymicepowerline nerd font-medium-r-normal-*-13-*-*-*-m-*-iso10646-1" # extra font
SP_OFFSET_3=0
rofimenu font
// font: "xos4 Terminus 18px";
font: "DejaVSansMonoForPowerline Nerd Font 14px";
with above settings, i get this...
[i have colorized monotone icons (shown iin app menu) to match the nerd icon color to keep in sync]

unfortunately i cant install knack nerd fonts [name changed to hack nerd but still not able to install from nerd-fonts aur repo for technical reasons. i could manually install dejavusansmono nerds complete manually and hence able to use it