What to check
An upgrade being offered does not mean the player chose it. Compare each card’s bonuses separately; the full rules for how these options are randomly selected are still unconfirmed.
PokéBonk — Why do upgrade bonuses differ for the same move?
The short answer
The collected offers include different bonuses for the same move and level transition, including different choices at the same rarity. Treat each displayed offer as an instance; the data does not establish the full random-selection rules.