Should I build on Ethereum or Polygon?

Hey there, I'm just curious, which platform would you recommend for building a new decentralized application - Ethereum or Polygon? I understand both have their unique advantages, but I'm trying to weigh up the pros and cons to make the best decision for my project. On one hand, Ethereum is the OG of smart contracts and has a strong developer community, but I've heard Polygon offers faster transaction speeds and lower fees. What's your take on this? Could you shed some light on the key differences and which one might be more suitable for my needs? Thanks in advance!