You may disagree with my assertion, but there has been considerable research into the role of media and reporting in suicide, indicating that contagion is real and that words matter when reporting on these issues.
Today I would say that framing suicide as "immoral" in secular society is banal and has no traction, but most, excepting certain circumstances, would suggest it is a bad choice. That surely follows if you as well as I would try to talk an able person out of suicide.
I don't think it helps to diminish agency as though suicide is an inevitability following tough circumstances. That's the message I am getting from the euphemism treadmill game, and I reject it.
The message should be that you can go through hell and recover, and you still have a choice. And granted there's always nature vs nurture; just as we are not entirely the product of our environment, the environment does shape us. But it's not all-or-nothing.
The article linked by the parent comment explains it well and references plenty of considered material. But the tldr is that committing suicide aligns with an active criminal/immoral act, while dying by suicide is a factual cause of death with many possible causes.
Consider how people would like your death, or the death of a loved one, described by others. And if you can't, maybe consider how others might be affected.
The projections are doing the work here. Colloquially today what's understood is that "commit" merely means they did the deed. People can judge that to be immoral or not regardless; most people don't, except through the lens of religion.
They might judge it to be the wrong choice, as I surely do, and I don't think it helps to diminish agency as though suicide is an inevitability following any given circumstance.
