[allana]

>I use Signal with one friend, and just about every time I launch the damn app on my phone or desktop, it complains that I need an update, or I need to re-link something

If you regularly need to relink Signal Desktop, it is likely your disk is failing and corrupting the sqlite DB that Signal Desktop uses. Back up your other data ASAP!

[comex]

I've repeatedly needed to relink Signal Desktop when launching it after long spans of non-use (months). The first time was probably at least a year ago, if I had to guess, and I've had no signs of disk failure.