do you think bootstrapping as a first time founder to find some level of users or revenue is a better signal to VCs than just having a nice MVP and pitchdeck?

The way is long if one follows precepts, but short and helpful, if one follows patterns. 




https://dancecilia.com

Having users and revenue is strong. Additionally, the ability to launch products that follow trends, execution capability, and marketing strategy are important. Even if these have not been implemented, it is possible to conduct research and make plans.