Your wallet is ok even there's fake token inside it. It won't harm your wallet.
But connecting a wallet to an unknown and fake DEX, that's where the problem starts. Only refer to official DEX sites and try to analyze if that site is legit as it's easy to make a clone these days.
So thats why we should really be careful but as long we dont make any moves or does give out our keys then we should be fine and better to ignore those coins
and wont mind off because it wont give out anything harm but rather you are just simply accumulating those.