5e - Can a wizard copy spells from a Warlock's Tome of Shadows into his own spellbook?

I'm having trouble finding definitive answers on this. Can a single-class wizard copy spells he finds in a defeated warlock's Tome of Shadows into his own spellbook? Could he only transcribe wizard spells from it? All of them - including ones that are not on a wizard's normal spell list?

This Book of Shadows (you determine its appearance) contains eldritch magic that only you can access, granting you the benefits below. The book disappears if you conjure another book with this feature or if you die.

So, as of 2024 rule set, no, you cannot copy spells from the Warlock book.

The Book of Shadows contains eldritch magic that only you can access if you have the Invocation: Pact of the Tome. No other caster Wizard or even Warlock otherwise can until

"you have unearthed Eldritch Invocations, pieces of forbidden knowledge that imbue you with an abiding magical ability or other lessons."