Work colleagues who want validation for doing work? Tf is this.

Hey guys i just need some perspectives on something thats quite honestly bothering me. So ive been at this job for 8 months as a repair technician. We're only a team of 15 separated into pods depending on hardware/software. Anyway we had minimal training near the beginning but most of us know the job in side and out now

I have two colleagues that always celebrate there repairs. One literally shook my hand because he was happy he fixed something that i taught him near the beginning and another was bragging about hitting his KPI before lunchtime lool he also shows me stuff that ive known since the beginning for example " if you lift this notch here you get access to the mainboard" like bro thats obvious.

Has anyone gone through this? I just get on with it and repair the damn thing but it seems people want validation for doing the basics. Maybe im being harsh because we all learn at different rates but its incredibly annoying when there trying to teach me about stuff ive known for months.