If you've built more than one SaaS (mainly talking to product builders and studios), you will start to realize that the process of building these standard SaaS components will take you more time than building the core functionality in the beginning.
RPA (basically tools anyone can use to create programmatic APIs on top of legacy software) and NoCode/LowCode (letting anyone build an app with a spreadsheet as a database representation) are the biggest shifts in enterprise software since the cloud.