I’m sorry, but we’ve passed the need for faster computers to do standard office stuff a long time ago. You can’t blame Apple (or other PC manufacturers) for having crossed that threshold a decade ago.
You're painting with too broad a brush. One needs to distinguish between light and heavy office work here.
I have a 2019 i9 iMac (Apple's fastest consumer desktop from 4 years ago--i.e., much less than a decade). And I frequently get spinning beachballs in Word, Excel, and Adobe Acrobat Pro. The Office issues are mostly because Office isn't well-optimized for Mac. Thus, unfortunately, when doing heavy office work, one still needs a very fast processor to overcome this.
I haven't tested my 2021 M1 MBP for regular office work yet. But I've done couple of quantitative tests with office operations. Note: Before you dismiss these as unimportant, let me acknowledge that it's the routine stuff (the spinning beachballs) that are most annoying; but I think it's good to put some numbers to this, and these are operations that could be easily timed:
1) I have an ≈300-page Word document that takes an annoyingly long time to fully open
on both my i9 iMac and my 2021 MBP. It's 34 s on the iMac, and > 20 s on the M1 Pro (I don't have the exact number in front of me). This is not a disk access issue (it's 220 MB, which takes only a few seconds to transfer to RAM)—it's the time it takes Word to fully process the document and thus finish opening it. When you want to quickly open the doc and take a look at something, this is a longer wait than one would like.
2) Converting a multi-page PDF to readable form (using Adobe's Optical Character Reader), to make it searchable. I haven't tested this with my MBP, but here are results from members on this forum and others on the same 56-page patent application. Now imagine your office work requires you to do this with several documents...
M3 Max: 28 s
M1 Ultra 36 s
M1 Max: 45 s
2019 i9 iMac: 74 s
Again, it's not about whether these specific operations are imporant. Rather it illustrates that, even with AS, there can still be significant wait times for heavy office work. Thus heavy office work could likewise benefit from significantly faster speeds than even the M3 Max can provide.
People that really need computing power still have an unquenchable thirst for more, be they gamers, AI developers, AR/VR developers, programmers, scientists, animators, graphics artists… That thirst will remain for a long time, but the group of thirsty people will shrink slowly but surely. [emphasis mine.]
I strongly disagree with the part I bolded. Those groups have been consistently pushing the bounds of what's possible with computing, and thus will happily continue to gobble up any additional computer power you give them.
That's certainly been the case with scientists, going back to the dawn of computing. Indeed, computing in the sciences is becoming increasingly ubiquitous, and thus the size of that "thirsty" group is increasing, not decreasing.