As-salamu alaykum Ustadh. For Fajr I accidentally missed it as I didn't hear my alarm even though it usually wakes me up. If I miss it I feel lazy to get up as soon as I remember it, is this bad? I still make it up but if I use my phone for a bit before that for example جَزَاكَ ٱللَّٰهُ خَيْرًا

Ustadh AbdulAziz al-Haqqan

Yes, once you wake up and you look at your phone for a couple of minutes to wake up more, you can do that, inshallah, and then you get up, make wudu, and pray. Just make sure that this doesn't continuously happen. You can set more than one alarm so that you do not miss the salah.