Slowing down laptop refreshes is so short sighted. One of the cheapest productivity boosts you can give someone is a faster laptop. Better than hiring another dev to join a bloated team.
4 years was the standard for a long time, these days many companies are moving to 5 or even 6 years for laptops.
Hell right now I have employees at 4 years that refuse to change out their laptops because they have no problems with them and want to keep them longer
It was barely usable in the end, but I didn't want to be locked into years of crappy keyboard et al when the improvement was Just Around The Corner™.
Performance translates into more productivity for employees spending most of their time in front of one.
Even JIRA and Confluence are way faster on my 2021 M1 compared to my 2019 MBP due to the javascript runtime being much more performant. Admittedly a bit of a cherry picked example, but still.