DubConqueror: Epic is a store to get FREE games from, but not to BUY games from. Read this in the EULA I was asked to sign before getting the free Subnautica game:
"Epic may update the Software remotely without notifying you, and you hereby consent to Epic applying patches, updates, and upgrades.
Epic may modify, suspend, discontinue, substitute, replace, or limit your access to any aspect of the Software or Services at any time. You acknowledge that your use of the Software or Services does not confer on you any interest, monetary or otherwise, in any aspect or feature of the Software or Services, including but not limited to any in-game rewards, achievements, character levels.
You also acknowledge that any character data, game progress, game customization or other data related to your use of the Software or Services may cease to be available to you at any time without notice from Epic, including without limitation after a patch, update, or upgrade is applied by Epic.
Epic does not have any maintenance or support obligations with respect to the Software or Services."
emphasis mine.
Like steam, EA, uplay or MS store. It's the same.