There is a specific rule requirement to disclose any possible disadvantages in the suitability report. The rule (COBS 9.4.7) can be seen here: http://fshandbook.info/FS/html/FCA/COBS/9/4.
Remember that a disadvantage is different to a risk. For example, there is a risk that investments can fall in value, whereas a disadvantage would be that the recommended product has higher charges than the product being replaced.



FCA publications on Consumer Investments
Alistair MacDougall Compliance 2020, 2021, FCA, Pension, Pension Transfer, PI, SM&CR, Update
The FCA has published three papers giving an insight on what the regulatory focus has been and is likely to be.