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The 10 parts to download for Mankind Divided are all labeled "1.19 hotfix". Likewise the 4 parts of DLC are also labled :1.19 hotfix".

Is it necessary to download and run Patch (1.19 to 1.19 hotfix) ?

N.B. I use Linux. I do not use GOG Galaxy. So a simple yes or no answer would be appreciated.