That article pointed out something important that I had not considered:
" However, the chance of of your chain being cropped can be significantly reduced by keeping the chain as far off the ground as possible when you lock your bike. In order to crop a chain, the thief will need to use one arm of the bolt cutter against the ground as leverage. The further your lock is off the ground, the more difficult and less effective this will be."
My strategy after watching video of how easily they steal locked bikes became this: with a $200 USD budget for locking up, I'm going for a bunch of different locks cable and chain combos.
Got an Abus U-lock immediately for through the triangle or frame, to the rear wheel
I also ordered 3 from here because it was much less pricey than Canada gets...we'll see how that works out later.
I got 2 of these just in time, sold out now
Buy On Guard Mastiff Chain With Boxer U-Lock here at ProBikeKit CA. We have great prices on bikes, components and clothing, as well as free delivery on all orders over $89!
www.probikekit.ca
I also bought 1 of these
OnGuard Pitbull Mini Standard Shackle U-Lock/Cable - 90mm x 140mm x 14mm
It's like $20 USD !
https://www.probikekit.ca/cycling-accessories/onguard-pitbull-mini-standard-shackle-u-lock-cable-90mm-x-140mm-x-14mm/11725528.html?utm_source=ecrm-dispatch-confirmation&utm_medium=email&utm_campaign=ecrm-dispatch-confirmation&affil=thgemail&ecrmcid=lX2YdBwJ6z5MQ2kAqZYrOq14KxDbGpjE&shae=nf3gRjQ96dTTdk3ZMgpQRp+LMuWQumVMgB0LGxD7FB4=&sendTime=1567575552
Add another cheap cable lock I already owned.
All to go in the pannier boxes if I'm going to lock it for more than 5 minutes. So far nobody has stopped me from walking my bike into stores like Walmart or Sportcheck or CanadianTire, that have bike supplies.

And Home Despot, Lowes, etc.