With the merge coming, how big of an issue are staking pools like Lido?

From posts I'm reading, Lido has 1/3 of all staked ETH.

Is this going to be an issue? With people holding less than 32Eth clearly wanting a piece of the staking pie, they're all going to flock to staking pools. And they're all going to flock to big names and pools with a reputation, usually stemming from other stakers who will "vouch" for one. Because let's face it, we're all lazy and it's more reassuring to stake in a pool that doesn't have just 3 other people.

​

Buterin has talked about staking pools "self throttling". Is that really the solution going forward? Everyone self imposing restrictions through altruism for the system's integrity. I just can't see that being viable.