If you were building a new dApp in consumer web3, how would you choose which chain/L2 to build on to optimize for product growth?

Seems like the two major factors are adoption and gas fees.

cma.xyz. Founder /paragraph, ceo /mirror, previously at Google & Coinbase 

was debating between polygon or mainnet for unlonelyNFCs. visibility is big for NFCs though and polygon gets less visibility on wallet dapps(usually an extra button or side tab you need to click to view them). however, we’ve also prob spent >$500 on gas fees minting them to main so that’s a factor as well. not sure

I'm having similar thoughts. We chose Polygon for a previous Paragraph feature, but many folks complained about lack of visibility. We're working on a new feature and I'm leaning eth now

polygon is cheap and so are it’s NFTs usually. lotta cheap marketing, Coca-Cola ads, here’s 10,000 pictures of my ass for free, etc. For something as valuable and rare as a blog/article/essay on paragraph, might make sense to have it on mainnet.