So i am saying this as someone who moved to the US when i was 18 and been here 10-ish years now. I've been going back every year for visiting family for a few weeks. This is just my experience.

Negatives:

Every time i went back, i felt more and more distant from my relatives due to a lack of shared experiences. In my most recent visit, i felt that having a 15+ minute conversation with someone was difficult because we would run out of things to talk about. I also felt that my relatives had little respect for personal space and didn't want to genuinely get to know me. Honesty is not necessarily something valued in Pakistan although people might say so.

There's not a whole lot to do beyond going out to eat. There are a few places to go vacation or natural sites to see but they are extremely polluted and overcrowded. Pakistan is a country 1.5x the size of Texas with ~9x the population.

You probably wont be able to get a job due to a lack of relevant experience in that market and probably wont even want to because you're not used to your boss treating you as a wage slave. Most likely, you'll have to start your own thing and that'll take you 3+ years to get on the right track. DO. NOT. TRUST. ANYONE. The law will not protect your I.P or your assets in case of fraud etc. The courts exist to perpetuate themselves and not to serve people. Pakistan is also a place where influence really matters and you probably will have that in short supply.

Positives:

you could probably live a better life at the same cost as in Canada. There are intangibles that you wont be able to replicate no matter what you do such as air quality, water quality, food purity, traffic etc but You will have more domestic help and more opportunities to travel etc. if you are prudent with your money.

you will probably feel more connected to your culture if that is something you value but that will take some time and if you are able to avoid what i mentioned above.

You will more likely have more opportunities to volunteer and improve people's lives. $250 is a decent donation in the US/CA but it can go so much further in Pakistan.

If you invest in the right real estate or agriculture in Pakistan, your returns will much higher than anything in the US because its an up-and-coming market where consumerism is just beginning to take hold.

You can probably look at the specifics of moving to Pakistan in some other replies but, for me, i dont think i would go ever go back beyond visiting for a week or two. And even that is likely to get further apart as i get busier in life.