u/Beneficial-Air4881

So I am very new to this thing people have suggested me for custom ROMs so please can anyone help me how does it work and should I go for it or no I have a redmi note 10 Pro and I don't have the budget to buy the new phone for my college can anyone please help me what roms actually suits me I actually like the oxygen OS and the nothing OS

I was actually going to my exam today morning and I saw a bunch of riders carrying the flipkart minutes order on bike in saptapur bhavi