Touting your own workflow as a reason, doesn't mean anything to the other poster. Having the available RAM to have 50 tabs open, doesn't mean it's a good use of resources & would be a complete waste for most people, including the person you initially responded to.
thanks but i'll be the judge of my own workflow, if it means i get to work more efficiently and get stuffs done faster by having tabs open instead of closing and opening it, i can live with that.
...which is why it's pointless to act like there's something called "serious" or "professional" work that defines how many CPU and GPU cores, how much RAM, how many Thunderbolt ports you need etc.
It's ridiculous that browser tabs eat as much resources as they do but that's the reality - complaints on a postcard to modern web design. Personally, I think I could contrive not to have 50 open tabs (which sounds like using tabs to do the job of bookmarks) - but I can see how some workflows could end up that way, especially if you're dealing with sites that don't allow accurate bookmarking.
It's relatively rare for a task to be flat impossible with more modest specs - just slower - so if you think having 64GB of RAM to do your job efficiently - for whatever reason - then you can look up the price of getting that (quite high with Mac now since you need a M1 Max) and decide for yourself whether the efficiency justifies the expenditure.
...but then
that assumes that you have the money to spend (or adequate credit) and don't have to convince a bean counter (...and if you work in an organisation of any size, that will be the bean counter from
procurement and won't give a fig about how much of
payroll's budget you waste by having inadequate equipment). So being able to justify equipment costs based on time savings isn't a luxury that everybody enjoys.
I think the reality of the MacBook Air is that - unlike the ultra-low-power Intel chips used in previous Airs - it is quite well-endowed with CPU power, even with reasonable multi-threaded performance, and the GPU is "good enough" to have a go at most tasks (it's not spectacular, but blows away any other low-power
integrated GPU). It can certainly do a lot more than previous Airs. However, it
doesn't improve the RAM capacity, external display support and number of I/O ports (OK - better Thunderbolt bandwidth, still only 2 ports) which are the other reasons that you might need a so-called "pro" machine.
With Intel there was always a progression of raw single-core performance as you "upgraded" from the ultra-mobile chips (Air etc.), through the regular mobile ones (MBP) to the desktop chips - and also as you want from i3 to i9 within any of those ranges. With M1, there's only really one single-core CPU performance across the range from MacBook Air to Studio Ultra - same for GPU (...and this will probably still be true once the M2 cores have rolled out across the range) apart from
slightly better performance on models with better cooling. The "M1pro/max/ultra" model performance is much more about
how many cores (...and not all workflows can take advantage of more cores) - so the other "pro/max/ultra" features - more RAM, more ports, more displays - are a bigger part of the equation. I'm sure that there are workflows that really need the 128GB RAM capacity of the Ultra yet leave 3/4 of the 20 cores sitting idle.