Are showing bank statements of e-transfer payment for rent or grocery credit card purchases enough for spousal support proof?

Filing together with my foreign spouse for the first time this year. We're still waiting on our spousal sponsorship visa to arrive but have been living together during this tax year.

Since we were living together I did not need to send him money as he used my credit card whenever we needed to purchase something and I just e-transfered our landlord rent money. The e-transfer has his full name which is helpful but are purchases to Costco or T&T?

Are these the kind of documents they'd like to see to show support as we don't have chunks of money transferred to each other?

Thanks for the help!