You're close to the right idea, but "easy to measure" is exactly the problem here. Tickets close is not a meaningful measure of productivity. It's better than commits, though. I've been pushing commits far less frequently since working from home, but it isn't because I'm actually pushing less code. It's because I no longer need to push to a central Git server in order to share with myself between a company-issued laptop I use when I am contributing from home and my office desktop when I'm in the office. I only have code in one place, and I only need to commit and push when I'm confident it's actually working, not as an adhoc sharing mechanism between devices that can't share storage.
Ultimately, the only metric that matters is company value and that has gone through the roof for virtually every company out there in spite of the pandemic. Unfortunately, that seems largely due to central bank action, not because their products have gotten any better, so that confounds any attempt to reduce the causes of value changes to anything you can easily measure at the individual employee level.
Ultimately, the only metric that matters is company value and that has gone through the roof for virtually every company out there in spite of the pandemic. Unfortunately, that seems largely due to central bank action, not because their products have gotten any better, so that confounds any attempt to reduce the causes of value changes to anything you can easily measure at the individual employee level.