Seated OH Press instead of standing?

Hi Guys, I'm pretty new to the program (and lifting in general) and just thought I'd ask for some advice

I'll be doing most of my workouts at home to begin with as I work very long hours so the gym isn't always an option for me. While I have enough room for a power rack and a bench, the height space where I will be working out is a few inches too short for OHP with proper form. If I switched it to a seated OHP would that make a difference? I get that it wouldn't engage my core in the way a standing OHP would but I plan on adding a core workout on at least one of my 'off' days each week anyway.

Has anyone else had to substitute one of the lifts? How did you get on? Thanks for reading guys!