This is just blue collar vs white collar. Both are working class, as they're both primarily earning their livelihood by exchanging labor for wage.

you can put a lipstick on a pig with some linkedin lingo like “professional class” or “working professional” but that is just for bars to impress boys/girls. end of the day you are worker and working class. the fact that you might be in the office while someone is out enjoying the sun at the construction site is just geography

In the original Marxist meaning, the working class is anybody who exchanges their labor (physical or otherwise) for a wage (hourly or salaried). This is defined in opposition to the bourgeoisie, who control the means of production and earn money from the labor of others.