For symmetrical LPs (ex: RUNE-ETH, RUNE-BTC, RUNE-LTC, RUNE-etc.) you will need at least 0.2 RUNE in your wallet to pay for the withdrawal fee.
For asymmetrical LPs you will need the “base chain” asset for the withdrawal fee.Example: USDC on ETH chain asymmetrical LP requires ETH in wallet in order to withdraw.