No, there are no seller protections on Ebay, which is one of the reasons I stopped selling there. The last sale I did on the platform, the buyer was an idiot and didn't understand how to use the item and forced a fraudulent return because of buyer's remorse. Cost me a bunch of money in return shipping and fees.
In the mid to late 2000s, they started removing options for sellers to leave neutral or negative feedback on buyers, then they started removing fraud protection and protection from stupid buyers.
If you have high-dollar items, I would DEFINITELY recommend you NOT sell on Ebay. There has been an explosive growth of fraud in retail channels over the last 5 years or so, and the trend only seems to be getting worse.