Reptiles tend to hatch mostly self sufficient as parenting isn't common.

W/ 6 INT they are smarter than animals, but just barely (Orc and Lizardfolk have 7 INT, Ogres have 5, skeletons have 6). It will STINK and be sunlight sensitive. I'd allow it to understand common on a basic level with time, but be unable to speak other than a few key words.

Your biggest decision will be, how long does it take to reach adulthood - what is their life expectancy? Lizard folk mature around 14 yrs and live to 60. I'd think Trogs would be a bit quicker, so maybe 10 yrs to full size live to 40 ... so I'd use it grows 2x as fast as a human (but hatches being able to walk and hunt bugs, worms, little stuff).

They habitually live in groups, so I'd assume it will naturally glom onto the party, but loyalty isn't really their thing.