Purchasing - Vic vs NSW

My partner and I are both going through the process of purchasing our first properties - she an investment in Vic and me a PPOR in NSW.

As we've been navigating the process, it seems like there are some strange differences in her experience in VIC vs mine in NSW, and I wanted to find out if this is normal.

For properties I've been interested in, including the one I've just purchased, from my end it's simply been a written offer stating purchase price, conditions (unconditional finance, B&P - nothing out of the norm) which then becomes a negotiation with the vendor via the agent. I haven't had to sign any contracts or submit deposits, until of course my successful one (only the 10% after reviewing and signing the contract)

Now, what I find weird is my partners experience in VIC - every time she has made an offer, she has been asked to sign the contract and pay a holding deposit JUST to submit her offer. The contracts she's being asked to sign state only the vendors terms - some of which contain pretty unrealistic finance terms (I.e 7 day approval to go unconditional). She's basically had to have her conveyancer on call to review sellers contract on every property she wants to make an offer on.

It seems bizarre and somewhat prohibitive for a buyer - especially a first timer - trying to make a deal.

Is this normal in Victoria? Is there anything she could be doing when submitting offers to decrease the reliance on contract reviews etc until the vendor has at least accepted price and terms?

Genuinely curious, thanks!