The results show that just under half of people in Scotland are confident of getting a reply if they ask a public body for information, while a similar proportion agree that FOI helps people be informed - both of these are lower than in 2019.
In a new area of research for the Commissioner's office, the survey showed that public authority websites are where people most commonly go when seeking information about that organisation (59% chose this option, either alone or alongside others).
However, the 16-34 age group was an exception,with internet search engines their preferred method (73%), and social media (21%) also much more commonly used by younger adults than others.
Daren Fitzhenry added:
"There is a wealth of information and insights contained within the results of this research, which will be invaluable in informing the work of my office, as well as potential improvements in FOI law and practice, in the years to come.
"It is vital to continue to monitor the public's views, perceptions and expectations in relation to FOI, and I look forward to seeing how these continue to evolve as we emerge from the worst of the Covid-19 pandemic."