Per my research and test, you could hide "download" and "integrate" command bars for all users but cannot hide "download" and "integrate" command bars only for all guest users.
To hide "download" and "integrate" command bars for all users, go to Format current view -> Advanced mode -> Add following codes.
{
"commandBarProps" : {
"commands": [
{
"key": "download",
"hide": true
},
{
"key": "integrate",
"hide": true
}
]
}
}
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