If you are considered unfit for certain tasks, it’s reasonable to remove yourself or get removed in order for you to refocus on something you’re good at.

But it wouldn’t really matter much anymore, because all of your basic needs are provided for. Getting fired would not lead you into poverty and homelessness.

Your question has only one answer: 无 (in the Chan/Zen formulation of ‘unasking’ a badly-formulated question).

At least for me, finding work is hard and knowing i could be easily fired for the first 6 months is stressful.

This is irrelevant in a properly socialist world. In a properly socialist world your basic needs would be met so losing your job isn’t the source of stress that it is in a capitalist world where your basic needs are a negotiation strategy.

ANY job, even working in whatever passes for a McDonald’s in such a society, has skills and abilities you must have to perform it. Not all people can do every job. This is most obvious in heavily technical fields, obviously (like, say, medicine or technology), but even working as a janitor has things you need to do which you may be socially, physically, or psychologically incapable of doing. And the only way to find out if you can do them is to try it out.

But…

With your basic needs met, if you try out and fail you’re not risking your health and very life. The desperation isn’t there. So I’d say yes, obviously, there would still be a period of evaluation for fit and ability in jobs in a socialist world. It’s just that failing at it wouldn’t be the devastating experience being fired in a capitalist world bears.

A world without capitalism doesn’t imply a world without responsibility or stress.

That said, “probation” and “multi-tier” employee categorizations as they exist now are fairly specific to our current mode of work, and specific to where you work, whether you have a union, what country you live in, etc.

But let’s flip this notion for a minute: as socialists we want to organize society in a way that give people the freedom to flourish and contribute. I think there will (and should) always be a job for you if you want it, under socialism.

In our current political climate, I advocate a jobs gurantee from the state to do obviously useful work.

probably yes but for jobs that require some technical skill, not for workin in a mcdonalds

Statistics and headlines like these aren’t worth the toilet paper I’ve finished wiping with.