Simplest way is to check SSD health on macOS from the system information window. What it gives you is the S.M.A.R.T status of your SSD. Click the Apple menu in the menu bar and select About this Mac. In the window that opens, go to the Overview tab, and click the System Report button. In the System Report window, select Storage in the column on the left. This will show you the current status of the SSD on your Mac. If the status is ‘Verified’, your SSD is in good health. If it’s failing, you need to replace it. But it doesn't tell you how soon it will fail.Sarcasm?
I’m genuinely wondering how I can check the wear and tear on my own current SSD on my MBP.