What local mechanics do is up to them. They don’t have any up to date knowledge about anything.
My argument was to follow what Toyota actually says, we can get to know that by looking at international manuals like US or Japan.
No unnecessary or regular CVT oil changes. Let it drive at least 80k to 100k km and inspect.
Same for engine oil grades, look at owner manuals in JP, US, Thai, Malay. As they are all hubs. Not like indus following pseudo science.