By that definition, every single bill that passes appropriations sends money to someone and therefore "stimulates the economy".
I still don't think stimulus was the impetus there. Compassion for those who lost their job, a desire to avoid/mitigate social instability, and reinforcement for people to follow the directions of health professionals.
As far as I can tell, this is the bill/law[1]. No mention of stimulus in the title or abstracts.
[1] https://www.congress.gov/bill/116th-congress/house-bill/6199...