Can the government track my purchases?

No. Only you can see your mDL history. Your State Government does not want to track your usage of ID cards or mDL. The AAMVA Guidelines specifically require privacy protections within applications and ISO 18013-5 Annex E contains privacy requirements for all parties in the ecosystem. The GET Mobile ID solution resists tracking through technical measures and has taken commercially available approaches to information security as per our privacy policy.