Migration from on-premise - O365

Question

Hello All,

 

I need soe confirmation with regards to one of our migration plans which we are conducting for our business. we have couple of 2010 sites for which we have migrated to O365 using sharegate. However, couple of pages and libraries which have documents and links within them(close to some 300 links) did not move to cloud. so we are trying to give powershell a try to see if we have complete content moved, can someone please advise by using powershell can we acheive what wee are looking for else is there is any other confirmed way of doing it.