I suggest that before you spend 1 minute looking the Paginated Reports in PowerBI that you evaluate the cost FIRST.
WARNING - Be very well seated
For Paginated Reports you need to buy PowerBI Premium Service $$$$$$$.
Either PER CAPACITY $4,995 USD/month or by user if you have few users at $20 USD/month/user
https://powerbi.microsoft.com/en-us/pricing/
I have 60 users running SSRS reports - Do the math.
In my case we decided to buy an Azure SQL VM - Cost less, more flexible and well known environment.
With PowerBI Premium Service Paginated Reports, you cannot use VS to design your reports - Design is done in PowerBI Report Builder.
It is similar to VS but not the same.
Your existing RDL can be imported - In my case one third of the report did not import. I dont remember exactly what I had to change (its been a few months but I had to spend 30 minutes per report so they can be imported (or deploy to PowerBI (dont remember).
Expect a little learinng curve