Indian passport holder — can I enter Saudi on an Umrah visa through Dammam? Please help

Assalamu Alaikum everyone!
I’m an Indian passport holder, but I was actually born in Saudi Arabia and moved there when I was only 3 months old. I grew up there, completed all my schooling there, and lived in Saudi until 2021, when my family moved back to India after my father retired.
I haven’t been back for around 5–6 years and I really miss Jubail, where I have a lot of old friends. I’d love to go back for just 5–6 days to see them and revisit the place I grew up.
My plan is:

🇮🇳 India → 🇴🇲 Muscat (I’ll be visiting Muscat for 6 days ) → 🇸🇦 Dammam → Jubail

I’m considering an Umrah visa because it seems much easier for me to obtain than a regular Saudi visit visa. I’m also a regular traveller, having visited around 14 countries, and would have my return ticket, accommodation, insurance, etc.

My questions are:
Can I enter through Dammam on an Umrah visa?

Does it matter that I’m flying Muscat → Dammam rather than directly from India?

Do I need to use the same airline for entry and exit?
Can I stay in Jubail with my friends for 5–6 days?

Most importantly, does an Umrah visa require me to actually perform Umrah, or can I use it for a short visit to Saudi?

Has anyone, especially an Indian passport holder, done something similar recently?