If other subscription services are anything to go by, I expect that business subscriptions will be free of ads. Personal subs will initially be free of ads, but ads will slowly be added, starting with the cheapest subscription and working their way up.
They're still in the stage of trying to get uptake on the sub. Ads come later. When they've got sufficient uptake, they'll start to add different sub levels.
If you think about it, it's actually pretty odd that professional businesses are reliant on ad-supported services (i.e. Google) for their employees to get work done.
Like it would be weird if you were a professional music reviewer and your employer expected you to use an ad-supported Spotify subscription.
