2016 Volvo XC90 T8 Hybrid Fault Codes

[Volvohybrid]

Hello Folks,

I have started having the following issues with my XC90 T8 Inscription. The car has passed emissions on Jul 07 had no OBD reported trouble codes during that time. During the emissions/inspection test, the dealer has found that the front struts need replacement($1500+ incl parts, labor, wheel alignment) and advised me to do it soonish. On Jul 18th, Sunday I have first noticed that the Cold air is not blowing (the fan is working), and shortly after Check Engine indicator light came on. After taking to the shop today Jul 21st they have run the diagnostics and found a variety of codes popping up, mostly reporting open circuits and weak signals. It seems like every electrical system related to the car starting to report an error. Now, we know the check engine light is mostly due to the weak O2 sensor reported in the OBD trouble codes and the AC is due to an issue in the AC compressor. Except for the AC, the car is fully functional on all the features. We don't even understand what is really wrong. I am seeking suggestions on how to even approach this repair. I can upload the images related to the fault codes that came up if necessary