New to Smartthings... got a couple of questions: which app? Color temp bulbs? Google Assistant w/o Home? Preset dimmer?

[jkp]

It is best to use the ST Classic app for now. The new ST (Samsung Connect) app is not ready at this point.

SPECIFIC differences between "SmartThings Classic" (the V2 app) and “SmartThings (Samsung Connect)” (the V3 app)

this thread is intended only as a listing of specific differences between the two apps, not for complaints, suggestions, discussions of design philosophy, bug reports, questions about migration, joke memes or anything else. Just individual feature differences. We originally used the abbreviation STSC for “SmartThings (Samsung Connect)”, but that never caught on, so now we are calling it the V3 app since it came out with the V3 hub. The V3 app is changing rapidly, so feel free to edit this as needed. The official knowledgebase FAQ is at the following link. Read it. https://support.smartthings.com/hc/en-us/articles/360000114006-New-SmartThings-app-FAQ The “how to” official articles for the V3 app are at the following link: https://support.smartthings.com/hc/en-us/categories/115…

"SmartThings Classic" vs "SmartThings (Samsung Connect)"

What’s the difference? What’s the expected rollout to existing users?

You can install the Google Assistant app on your phone and link it to ST.
https://support.smartthings.com/hc/en-us/articles/214837343-How-to-connect-Google-Assistant-with-SmartThings