Dividend investing is a popular method of generating revenue but it isn’t universally popular. During COVID companies that were historically popular with dividend holders such as BP & Shell cut their dividend, it’s a good reminder not to rely on them as a guaranteed source of income.
Here are two links worth reading -
@Freetrade_Team wrote this piece and while some of the % are a little old it should give you a great starting point for further investigation.
The counter point to dividend investing and discussion around them can be found on a thread from @Cameron and might be insightful.