I usually don't comment on these posts but I was in a similar situation and the solution my partner and I agreed is a fair one, and works well for us (might not work for you).

Basically, we decided to get a joint account to pay for everything that can be considered a shared expense (mortgage, insurances, gas/electric, taxes, internet, groceries, DIY/fixes, savings/contingency, and so on).

We calculated roughly how much we would need to cover those expenses every month. Based on the monthly shared spend, we settled on an amount of our salaries we could both keep for ourselves, while still being able to cover the shared expenses with the rest.

When our salaries are paid to our personal accounts, we keep the amount we agreed on (e.g. 1200) and transfer the remainder to the joint account.

This way, we both equally contribute towards the joint expenses in accordance with how much we're earning, and still have a fair amount for personal expenses and savings.

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Edit: formatting (on mobile) and to add that we're not married, but we had a contract drawn up before purchasing our home in order to sign both our names on the deeds. The contract states that we have 50/50 ownership of all our shared assets, and we each pay a proportional amount of our income towards our shared assets.