If you found out your pet had cancer and surgery would only give them less than a year, would you do the surgery?

My pet has an aggressive form of cancer we just found out about, and has multiple tumors different sizes in her abdomen and each of them has a high chance cells have already spread elsewhere or will.

Surgery + medicine and more scans will be about $1000-1500, which we could afford if needed. The main thing I’m worried about is the vet said to be blunt, even with surgery he is pretty sure she has less than a year - and that with his experience he is confident tumors will return soon after surgery. After surgery for awhile we would have to pin down pet to give her pills and syringe medicine where we squeeze into her mouth (which would scare her and she would hide).

I am torn. I feel like if we don’t get the surgery, it will be like we didn’t try and what if she ends up living many years against the odds. But if we do the surgery, I am afraid it’s wrong to put her through all this pain and trauma of an invasive surgery for maybe another year with her (he said it would be a very slim chance she would have any longer) and then after scaring her by forcing medicine down her throat... which will in result have her hide and avoid us as she will hate being pinned down and won’t understand why.

What would you do?