Roku Spotify Integration

I just finished setting up a Shelly 1 Button that triggers an automation that uses the Logitech Harmony universal remote integration to (1) turn on my Denon AVR-3808 and selects the Roku input, (2) turn on the TV with the Denon input, (3) Select the Spotify channel in Roku.

This way, anyone in the family who wants to play Spotify on the phone and pipe the audio to the Denon can do it with the push of a button.

I thought I was done until my son said that still had to use the Roku remote to change to his Roku account/profile.

My question is: Is there a way to select (or change to) a specific user/account/profile using the Roku integration?

I would then program the Shelly Button to use my profile with a single press or his profile with a double press.

Thank you.

Anyone ever accomplish changing Spotify’s user/account/profile running on a Roku device?