I’m not sure if it was intentional or if brushless motors are really that much more powerful but electric tools are far better now than they were even just 10 years ago.

I was an early adopter of an electric lawnmower, which I regretted. That thing had so little power that I had to mow like every 3 days or it would just push the grass over. I went back to gas after one season. However I went back to electric 5 years ago or so, and it's FAR better. But for a blower, or weed eater, electric has always been superior.

You absolutely don't need to buy garden tools that run on gas. The electric equivalent is at the same level or even better.