Re: Linux PC
Pre-pandemic, clients had pretty much all moved to a 5 year refresh cycle on PCs and laptops. Lately we've been doing refreshes for clients and finding the old kit coming out is often 6 or more years old. And there's fewer of them doing significant estate refreshes since most of them were buying hand over fist in early to mid 2020 and that kit is only 3 years old and expected to last at least another 2 years, more likely 3 or 4 more years.
There really isn't the major year on year major improvements in laptops or PCs and hasn't been for 10 years or so. The primary reason for estate refreshes these days is simply the age of the kit, not it's productivity value. The older the kit gets, the more likely it will have a hardware fail which is often not worth paying to repair on 5+ year old kit out of warranty. I'm not seeing OEMs offering warranties beyond 5 years yet. Some larger clients will have some IT support people with hardware experience and they are using parts from scrappers to make working kit. If you can swap a screen or keyboard into an other wise working laptop in 10-20 mins, that's an economic win, potentially saving anything from a £100 up to a £1000 per 20 minute fix.