If you include video files, the archive file will weigh <x id="START_TAG_STRONG" ctype="x-strong" equiv-text="<strong>"/>approximately <x id="INTERPOLATION" equiv-text="{{ archiveWeightEstimation | bytes }}"/><x id="CLOSE_TAG_STRONG" ctype="x-strong" equiv-text="</strong>"/>
This is an <x id="START_TAG_STRONG" ctype="x-strong" equiv-text="<strong>"/>import<x id="CLOSE_TAG_STRONG" ctype="x-strong" equiv-text="</strong>"/> tool and not a migration tool. It's the reason why data (like channels or videos) is duplicated and not moved from your previous PeerTube website.