You said you downloaded and installed the program? No you shouldn't be in the Online version. Can't you launch the program? Did you enter the 16 digit License Code and activate it? You do have to sign in to an account but that is only to store your license code.
See this FAQ for why do I need to sign in to an Intuit Account this year?
https://ttlc.intuit.com/turbotax-support/en-us/help-article/license-information/install-turbotax-cd-...
