Interim SEcret final adjudication

HI All, Hope everone is doing well in these tough times have an Interim Secret .question now with Covid 19 etc .How long might it be till I get final adjudication I have had Public Trust before for CBP TSA and now have Interim .

Also I was told it more difficult to get the Interim and then the final is smooth sailing is that true or not I know every case is different etc …

Thanks Mary