Compatibility between Unity and Steam services for a multiplayer game with inventory and community market

Hi everyone!

I’m developing a fairly simple multiplayer game using Unity and I’m taking advantage of the services offered by Unity for the server side and matchmaking which I’ve already used in the past for small tests and projects but never published. My goal is to publish the game on Steam and I would like to integrate some of its features as well, such as:

Inventory for each player with the possibility of dropping items more or less like it works on csgo and the sale of items in the Steam Community Market.
My question is: are the Unity and Steam services compatible with each other?

What problems might I encounter integrating both services?
Do I need to use the Steam servers to manage inventory and sellable item drops, or can I continue to use Unity’s services for the rest of the game?
Are there any best practices or recommendations on how to proceed with this integration?
Has anyone had similar experiences and can share how they dealt with any obstacles?
I appreciate any suggestions or information that can help me understand how to best combine Unity’s services with Steam’s without running into compatibility issues or conflicts down the road. In your opinion implement these
characteristics is particularly difficult?
Thank you very much in advance for your help!

Sure. Steam doesn’t know or care nor enforce what cloud services your game uses.

The usual for either but I wouldn’t expect any interoperability issues between the two.

These are different systems if you refer to Steam’s tradeable items. These are entirely handled by Steam.

Honestly, if you’re looking for less trouble, I’d recommend to do what every game does: Steam items are solely tradeable player rewards that have no ingame equivalent. I believe they work as achievements of sort, since you can only ever get the same item once (unless we’re talking different sort of items - I have not bought into the trading craze on Steam, just putting up those cards for sale to earn $3 every year yaaay).