Which is why I roll my eyes every time someone recommends using vintage laptops from the days they were user upgradable (ThinkPads, MacBooks, etc) and scream from the top of the hills what a great experience that is and why everyone should join in on that.
Yeah I get it, as a HW engineer and tech enthusiast and big right to repair advocate, I also appreciate how upgradable older machines were and how easy to repair they were and I still keep some old machines kicking around, but the modern web is simply a jarring experience on those old machines compared to the experience on modern machines with the latest processors that I cannot in good conscience recommend it to people, if they can afford something decent.
If you live in Vim and the terminal and just use your laptop to SSH into stuff then yeah, they work just fine, but for consuming content on the modern web or heavy productivity tasks I can never recommend staying on vintage HW if your time has any value and if you can afford the upgrade to newer HW.
It's just not a nice experience and with most web-devs using M1 class machines it doesn't look like things will improve for the users on less powerful hardware which I guess here lies the problem.
In Hollywood/Netflix productions, video mastering is done on super accurate $50K monitors but they use in parallel a $300 Walmart grade TV, set to the shitty "Vivid" setting to make sure the final content also looks good on the average TV average consumers have in their homes.
I think the same thing should be done in web development. Feel free to develop the front-end on your kitted out $6000 M1 MacBook Pros but testing should also be done on your average $500 Walmart laptop to check it runs well.