you can always use single staking pools for yield farming
Correct,,, but that is called yield farming, whereas OP is obviously asking about liquidity mining. Staking pools is actually nothing to do with liquidity if I understand correctly. Your staked coins/tokens are nor participating in liquidity pools so cannot be traded in or out, just there locked to the platform, in fact to prevent them being traded.
Technically yes it is staking, However:
You can yield farm mirrored assets and avoid IL
For example
USDC/BUSD
BTC-RenBTC
Msol-sol
wluna-renluna
This heavily mitigates IL
Personally I yield farm all sorts of pairs, not just mirrored pairs. Often the APRs well and truly outweigh IL. Granted there are some times when IL gets the better of you