Ahh ok, so you are asking about whether it is difficult to work this way.
I personally do this all development for my projects at my job, backend, frontend, devops.
I think it really depends on the person you are. If you are happy context switching and being a bit more of a generalist this kind of work is for you. But if you like to go into the weeds of a programming language when you use it, then maybe not.
Let me give you an example, when you are working as Backed and Frontend programmer at the same time in one company.
Ahh ok, so you are asking about whether it is difficult to work this way.
I personally do this all development for my projects at my job, backend, frontend, devops.
I think it really depends on the person you are. If you are happy context switching and being a bit more of a generalist this kind of work is for you. But if you like to go into the weeds of a programming language when you use it, then maybe not.
I like your point)