I made some business cards with office libre and a printer. I put cardstock into my printers and printed off the template I made. The cardstock gives them thickness closer to actual business cards. They’re a little narrower than standard business card.
For my cutting method is putting the paper on a cutting board, lining up a straight edge on line a razor to scratch through the paper and have it push against the straight edge to keep as straight as possible. I find this method to be faster than scissors

Oh no I live across the ocean, I had to Google it too 😋 (also, not OP)
Oh lol totally missed that you’re not OP 😅