I would take/use the old 2017 MacBook much more often than I would any other laptop. I still use the same sleeve but instead of taking a laptop on-the-go, I opt for an iPad(mini)/keyboard/trackpad. That 12" size made it a much better option. It's unfortunate because iPads are too much a compromise for me.
IMO, the size was the key. The performance only needs to be 'good enough'. That's probably why people are posting they're still using those discontinued models. That's why I'd gladly take a MacBook with an M1/2 (minimum viable performance), but will probably be much more impressed by performance/battery-life/efficiency with the smallest, binned upcoming M3.
FYI:
GB6: {
{ 2021-M2-Macbook-Air: { SC: 2563, MC: 9586 }},
{ 2017-i7-Macbook: { SC:904, MC: 1686 }},
}
That's quite a jump. Given today's laptops, that 2017 doesn't quite meet that minimum viable performance 🙂