P2271 fault (O2 Sensor): How long can I drive it?

My 2010 Jetta has about 95k on the clock, and I'm hoping to get another 5k out of it before the buyback. But I recently it threw the below code:

Address 01: Engine (CJA) Labels: 03L-906-022-CBE.clb
Part No SW: 03L 906 019 CM HW: 03L 906 022 TS
Component: R4 2,0L EDC G000AG 9971
Revision: 12H03--- Serial number:
Coding: 0050078
Shop #: WSC 22142 444 94218
VCID: 78D11FE90B4853858D-802C

1 Fault Found:
008817 - Oxygen (Lambda) Sensor Signal B1 S2
P2271 - 000 - too Rich - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 152748 km
Time Indication: 0
Date: 2025.14.27
Time: 08:39:59

Freeze Frame:
RPM: 1771 /min
Speed: 91.0 km/h
Lambda: 42.6 %
Mass Air / Rev.: 530.0 mg/str
Voltage: 0.075 V
(no units): -1.27
Voltage: 0.975 V

Readiness: 1 1 0 0 0

I looked this up online and it seems like the post-cat sensor went bad. Some shops around me are quoting around $300-350 to replace the sensor. Does that sound about right? It it possible to run on the bad sensor for another 5-6k?

Well, maybe. Take this with a grain of salt, but I had a corolla with a bad o2 sensor and I probably put about 70k on it (you read that right) before the whole car bit the dust. Only symptoms were -5 mpg and an occasional stall while idling.
Granted, the car was over 20 years old. I don't think driving a newer car in this condition is wise, but It may be possible. You'll likely see fewer mpgs, rough running and will for sure fail emissions testing
Just own it man. No sense spending 300$ if its gonna get turned in. In my opinion, the worst that can happen is the car stalls out and its cute little brain refuses to let you restart. In which case, a tow home and replace the sensor would be in order.