6 years ago i tried Sierra Glow glass coat, cost me only RM 1k lasted for 5 years+, before it start to wear off, due me being too lazy to wash car and staying in condo that has no car wash

they offer free one time 3 panel re-coat if the car involved in accident and need to re-coat, they has a higher end which is the blue flame version
https://www.sierraglow.com/blue

they used to do a lot of advertisement last time, but now seems like not much anymore