She does seem stunted to me, at day 24 in your grow environment I would have expected a bigger plant with more branching. When you 1st remove some fan leaves she was too young in my opinion, but I have often found these plants hit some amazing growth spurts in spite of some of the things we do to them. It is all a learning process and part of the journey of gaining experience. These big fan leaves store energy, help the plant with photosynthesis, help the plant transpire, and also uptake nutrients via foliar feeding. I tend not to remove big fan leaves unless they are already old and dieing or simply blocking a branch top site and tucking wont work, if tucking does work I want to do this and let the leaf live, as it is a energy factory for the plant and grows for a reason. I usually don't remove fan leaves in Veg but only in flower, though every grow scenario is different, I have in past grows had battles with Thrips which has caused me to remove fan leaves sooner. With all this said your case could also simply be you are growing 'the runt of the litter'. When I have grown out 3 to 5 plants at the same time of the same strain, one always seems to lag behind the others being the runt, it could be your one plant here might have just been that runt. Even with good quality genetics there is still genetic variance in each plant, which is why people love to pheno hunt.
Also when you raise the lights in should cause the plant to 'stretch' towards the light, mainly the top, with your LST technique the branches should stretch out, I actually get/encourage my side branch growth by getting some lower power screw in led's closer to the branch site and giving them their own source of light. a simple desk lamp is used for this purpose and one that is highly adjustable so I can ensure the branch sites are getting their own quality light source.
At this point in your grow, you should see some stretch when she goes into flower, most strains will do this, I have had some auto's double in size during flower, but most don't, and some hardly stretch at all, it comes back to genetic variance. Ensure you are not over watering which is such a common common mistake that I see many experience growers do let alone newbies. Allow your soil to dry out a little inbetween waterings, but not to the point of the plant wilting due to no water. Its a fine line, and as the plant matures and goes into bloom its water requirements change, don't be surprised if a flowering auto becomes a heavy drinker, I always let the soil tell me when to water.
