Mixed thoughts here. If you have an idea of SaaS that exists in the domain/industry and not addressed for years and see an upward trend of adoption, then start one, execute it and maybe white-label your product to big brands that are usually slow to execute SaaS.

Be a Hubspot or resell Hubspot? Be Zoom or Ringcentral? (Ringcentral whitelabels Zoom)

Do not build another SaaS CRM and call it Web3 CRM :)