Draft will have one lesson per pack; they’re identical in distribution to paper draft packs other than not having a foil slot. They haven’t mentioned for arena boosters, but I would be very surprised if those had a dedicated lesson slot.
In the 8-card store packs lessons are treated like any other Strixhaven card of their rarity (no dedicated slot). 15-card draft packs work just like tabletop packs.
Wizards Jay
In the 8-card store packs lessons are treated like any other Strixhaven card of their rarity (no dedicated slot). 15-card draft packs work just like tabletop packs.