I have been selling digital items for a very long time, I have never been suspended, but then again I only made a few hundred dollars in total.
https://www.ebay.com/help/policies/prohibited-restricted-items/digitally-delivered-goods-policy?id=4289
If you follow everything in this link, you should be okay. It also helps if you use your account to buy things. If you ever run into problems with a customer you need proof of purchase, and always mention links like the one above and paypal digital good seller protection link. I had one customer chargeback but this way when paypal and ebay were still the same company, and they ruled it in my favour.
Maybe it's harder now, but if you follow their rules and maybe contact them by phone when you run into problems, you should be in the clear.