As someone who cares for elderly people sometimes, please please fill out an advanced directive (not just a living will). It’s a sort of “if this, then that” for health scenarios. It’s immensely helpful when when caring for someone not well, and can be much more stressful without one. I have had dying, incapacitated patients wait weeks for guardianship or POA-HC to be processed before care can be changed to comfort measures, because they did not have one on file.
Get one from the hospital you would likely go to, fill it out, give them a copy, keep a copy, and give a copy to who you list as a decision-maker. You do not want to add the stress of logistics to an emotionally difficult time.
I think as a society we should embrace death more. Pretending it doesn’t happen just makes things worse when that reality of mortality unwaveringly stares you in the face.