Suggestion: Nitro users should be able to customize a personal banner - https://support.discordapp.com/hc/en-us/community/posts/360054897612-Nitro -users-should-be-able-to-customize-a-personal-banner : r/discordapp
How to change your profile banner on Discord - Android Authority
Profile Banner Restriction - A Little Too High – Discord
cannot change banner even though i have discord nitro : r/discordapp