I thought the comment was for R5 1600 which is close to my R5 2600 and those Intels were close in performance. Checked specs of them and I see they are not, also thought that i5 6600K was 4/8. In this case, yeah, upgrade probably was more than noticeable.
Sounds like some bad software or something extra CPU intensive then. I use R5 2600 on W11 and it can handle everything I need with ease like web browsing (depending on pages and tab count it can be quite demanding), at least 3 VMs at the same time (2 Windows, 1 Linux), gaming, video transcoding. All that is not happening at the same time, but I can't remember last time I checked Task Manager to see what is using my CPU.
Seems weird to be honest. I would agree on removing personal Teams from new Windows installations, but if you are locked in Microsoft 365 environment it is very unlikely you will not use Teams due to how well it integrates with whole ecosystem.
It's almost as asking to unbundle Outlook because Thunderbird exists.
Their primary use is enterprise not private consumers. Think of virtualized OS accessible over internet that you can manage/protect and provide for example to some random consultant. Or just provide more powerful PC on low end HW.
It's costly though and not sure it ever gained traction because there always were alternatives like Citrix Desktops.
Which is great, offsets us who do use adblocks. It would be awful if majority of users would use adblocks.