Teacher here. Had a 2018 MacBook Air up until last month, and prior to remote-teaching, it handled most everything fairly well for me within reason, both in the classroom (projecting to a SmartBoard) and at home. I knew that I couldn't go too crazy with multiple apps simultaneously, but I could live with that most of the time.
Fast-forward to this fall and full-time remote teaching. With a heavy reliance on Zoom and MANY Chrome tabs and Google apps open simultaneously, the 2018 MBA just became unbearable. Multiple instances of the spinning beachball, videos/screen sharing taking an eternity to work or just seizing up, Zoom windows becoming unresponsive, fan BLARING. I decided just prior to Christmas that I would eBay it before the value dipped too much, and purchase an M1 MBA to replace it. As I received the M1 over break, I wasn't able to stress-test it too much in a work scenario, but I was impressed at how smoothly it seemed to handle some family Zooms I hosted over the holidays via AirPlay to the Apple TV.
Fast-forward to this past week. And all I can say is wow wow WOW. The thing doesn't even break a sweat at having 20 Chrome tabs and Google apps running, across a two-screen/external monitor setup, while Zoom is running (with now up to 49 video users on-screen simultaneously...the previous MBA could only show 25, requiring me to scroll to see the whole class). Haven't seen the spinning beachball even once. And of course, it's doing this while staying lukewarm at most and, with no fan, completely silent.
The only slight negative I've noticed is that sometimes coming out of sleep, or even upon reboot, the external monitor is slow to show up at times. Hoping that a future Big Sur update will fix some of these display quirks that have been reported.
But really, the difference in performance truly is breathtaking. And this is ENTRY-LEVEL Apple Silicon. I'm excited to see where Apple takes this...especially in the iMac realm (as I'm now itching to replace my 2013 27" iMac).