Uh, if it's a non-insigninficant amount, then I'd spend it, but make it clear to HR that in future you'd like your bonuses in regular currency. You could also

Uh, if it's a non-insigninficant amount, then I'd spend it, but make it clear to HR that in future you'd like your bonuses in regular currency. You could also possibly re-sell the gift card, exchange it for something (I know there's a market for cryptocurrency exchanges for gift cards) or gift it forward to a family member or friend.