Light burn or nutrient burn?

light damage will start as interveinal damage, so that's nutrient related, probably... there are both tox and def that can cause tip burn. "Burn" doesn't always mean tox. If not progressing quickly, i'd be patient and be more confident in a diagnosis before taking action. If that picture is under grow lights, it's probably a bit on the lush side. Could drop fertlizer 10-15% and see how that goes... watering habits are often bad, so just in case... 1) fully saturate - 10% runoff or more, if soilless context. 2) wait for appropriate dryback and repeat. Don't overthink watering. should just be a trigger based on moisture level in the pot and not inductive reasoning based on a feeling.

Definitely over fed.

Light burn will turn your leaves yellow. It'll almost look like nitrogen deficiency. Nutrient burn will be on the very tips at first. I would guess nutrient burn but very very minor. Your plants and leaves look very healthy. I would be happy with my plants right now if they looked like this. You don't need to back off on the nutrients but you may have found their threshold for how much they want

There quite a few reasons tips will burn, Ca mobility issues/def, root zone stress, salt stress, water stress, elemental toxicity, and i am sure there are more "nute burn" is often a misdiagnosis, posting a pic with 0 relevant data and expecting a accurate diagnosis is like throwing a dart at a list of possible problems.

Hi mate, you did well raising the light you moved it for a reason so probably noticed something. Yeah it's nute burn but it also makes it more sensitive to the light. Give a light feed next few feeds if you havnt already. It's not a bad thing, you caught it in time this is what to keep an eye on to get familiar with her thirst for nutes then hold it there or back off slight.. Good luck.