Hello there!
Got the same problem, sort of.
I'm playing GW2 from two PCs, in different locations, my home gaming PC (AMD Ryzen 5600, RTX 3060Ti, SSD) and annother PC (AMD Ryzen 1700, AMD Vega 56, SSD). Had no problems atall with both PCs (both running same version of windows 10) untill a few weeks ago when on the other PC (Ryzen 1700) the game client started to crash randomly. I have disabled my addons and still nothing. Today it started crashing even more often. It dropped me two times in 5 mins, once trying to port to Home instance, second time harvesting the nodes inside the instance.
Some ghildies recommended me to lookup some repair patch or exe available but couldnd find anything, apart for the old fashion repair trough the loader.