Visa's debit card limit on Denmark seems to be 100,000 DKK, roughly 13,000€. There's no limit with the national system, Dankort.
Faster payments [0] is pretty much instant. Some banks have lower limits, and CHAPS[1] is same day and unlimited. I used faster payments for buying a car, and for paying a house deposit. My bank transferred my mortgage via CHAPS.
[0] https://www.starlingbank.com/resources/banking/guide-to-fast... [1] https://www.hsbc.co.uk/current-accounts/what-is-a-chaps-paym...
and a normal check is the same as an ACH transfer, so I will do the ACH transfer
or lawyer's escrow
and every other larger transfer has been cryptocurrency in my life, its been over a decade of that unlimited amount, zero scrutiny, 24/7/365 option
(I've tried various other country's and international system transfers, and the convenience is completely over-embellished, and limited to small amounts at best. and yes, I'm talking about instant SEPA in European banks. A lot of people don't have balances in crypto currency so it would just be more inconvenient for them to get into that system)
but the only time I'm personally using checks are because a new employer's HR system wants me to write VOID on a physical one, and I've opted to photoshopping a template with my account number and routing number, because checks are the same as an ACH transfer, and they could have just asked me to copy and paste those numbers into a input field
(But we can also just scan the QR code of the recipient's bank account with the e-banking app and initiate a transfer that way.)