Webnovel.Forum

https://www.webnovel.com/book/lemongrass-a-cultivation-story_19083669606340505

Follow Meadow Song, a 16-year old transfer student, delve into the darkness of Heaven’s Gate, capital of cultivation. Many people there aspire to ascend to Heaven but only a few know that the path to immortality is built on corpses. This glamourous city is home to all the classic factions of Wuxia-fiction. In this future-esque world, people learned to cultivate through artificial interfaces, so-called cyber spirits. How will Meadow, born with an innate grass-spirit, survive in this urban jungle?

TLDR: Amateurs can be good, professionals can be bad.

What is the difference between amateurs and professionals?
Professionals earn money with their craft. That's it.

It doesn't say anything about the quality. 50 Shades of Grey earned a ton of money. I wouldn't say it is the peak of writing though.

Of course, there is a lot more garbage to be found among amateurs because there is no vetting process at all. (Agent or publisher)
That only means you have to search a bit before you find fiction to your taste.