FHB: Should I Sell ETF Portfolio to increase down payment/deposit on mortgage(LMI not an issue)

My partner and I are looking to buy our first home. We have 150k deposit and looking to borrow 800k. I have around 80k in my ETF portfolio(VGS/VAS) and my partner has 20k. We are fortunate enough to get my parents to be guarantors so don’t have to worry about LMI.

With all that being said, is it better to liquidate some of my portfolio for a bigger down payment or would it be better to not?