Do you monitor SSD disk writes regularly to prevent excessive SSD wear?

Life’s too short for that. Chances are you’ll get a new machine before your SSD wears out unless you’re doing some really disk intensive work.

I check my SMART readout every few months for weirdness but besides that, no.

I check SMART regularly. SSDs aren't cheap!

When I'm writing code, disk wear is pretty much always on my mind. I do RasPi work, and I'm always aware that every write could cause a failure if a power glitch happens at the same time, even if the total isn't excessive.

I think OSes should be doing this by default though. Alarms for unusual conditions should be first class OS objects or built into some common standard out of the box tool.

There's about a dozen issues you'd never noticed unless you manually check or set up a monitor service yourself.

The only SSDs I have personally experienced failing due to wear are ones that I was using in an array for a database. These drives lasted several (5+) years.

While possible (and I am aware of an issue like this killing some SSDs on M1 Macs early on), it's not something I am overly worried about.

You should be backing up anyway.

I haven't been monitoring. I set up backups assuming there will be a failure. The few times I have seen symptoms of a failing drive, SMART didn't show any issues half the time.

Do you know that many SSD's go into read-only mode prior to failure ? If you have a spare on hand; copy && go! Like it or not, but storage has become a consumable.