They manufacture and sell the buses in Canada… There are BYD buses in operation in at least Toronto, Victoria, Longeuil, St. Albert and Grand Prairie (and probably more by now). https://en.byd.com/news/byd-opens-first-canadian-bus-assembly-plant/ If you’re in Montreal, there’s a decent chance you’ll see BYD E6 taxis.
There’s been rumors of the cars being prepped for general sale in Canada… but I can’t find any proof of that right now.
Double-check that you have Nvidia Prime configured/selected. It’s been a while since I’ve used Mint, but… try this…
My experience with this is that Nvidia Prime was not being enabled/selected when I was trying to game. If this (forcing everything to launch on Prime) works and your games are working at a more acceptable performance level, you can leave it in “Active profile” at the expense of battery life… or you can set up the On-Demand profile… or explicitly switch between Intel and Nvidia, using Intel for all non-gaming things and pop it into Nvidia when you want to game… lots of possibilities depending on how you want to use the computer. :-)
BTW, an alternative to the systray method is simply setting the profiles right within the NVIDIA X Server Settings app (the last menu item on the left nav menu within the NVIDIA app). I just find that the systray icon is a quick/easy way, and it’s worth knowing about.