Ethereum

Remember, there were people out there who believed that ETH would not pump due to "liquidity fragmentation" and "poor UX".

These are two very well known issues that are actively being worked on by many powerhouse L2 teams.

Don't get caught up in short term shilling games.

Founder of the Layer 2 Weekly Roundup: https://www.layer2roundup.io/ (prev Scroll)

I don't think that it is do or die today, but I do believe that it is in the best interest of L2 teams to work towards this over the long term

If they don't, It becomes more likely that a different ecosystem will fill that void and eventually rival Ethereum and the L2 ecosystem.

I don't think interoperability between L2s is as important. 3rd parties will likely serve this need but there's no incentive for L2s to be interoperable.