Not everyone can do that. A lot of people including myself don't reside in a house which they own. In my case, I have been using an APC H15 power conditioner on my AV system, and an APC Line-R 1200 voltage regulator for the 15 year old Panny plasma TV set, that is connected to a separate outlet. Fortunately, in the greater Montreal area, large voltage fluctuations are rather scarce. I have been living locally for close to 24 years and so far none of my electronic stuff was ever damaged by a voltage surge.
You are further North and you don't get the storms that we do in the mid west and most of the US now.
The other thing that has changed is that devices are much more sensitive to lightening storms than they used to be. For instance washing machines had contact switching and point to point wiring, but no more. My furnace has no mechanical switching, it is all mosfet digital switching. To make any adjustments a guy has to come with the right software and connect to the cloud to make any adjustments.
So, what I outlined is now law in the US. So ALL new construction must meet those requirements I outlined. That NEC, the National Electrical Code is Federal law. So any situation that requires pulling a permit and requiring an electrical inspection must now meet NEC 24 in terms of surge protection. That includes any new construction. So when I did my solar installation, that required a building permit and I had to meet NEC 24, that had only been in force for a month!
When I built this house there had to be surge protection at entry. This protected me a couple of years ago when we had a direct hit, and the surge protector showed red after and had to be replaced. I have all units that are vulnerable protected by UPS in addition, but they don't protect from sudden surges like lightening strikes.
I do not know the regs in your jurisdiction, but it may be your owners have to keep units to code. When inspected here they certainly do.
In the US as weather gets more violent from climate change building codes have to change accordingly.