Resident Evil is a series known for its convoluted and often downright silly lore. Only a few games in the series are direct sequels, and most can be played as-is without much knowledge of the wider backstory or universe. But it definitely helps to know what's going on. This is especially true with Resident Evil Village, which is a direct sequel of Resident Evil 7 and features a few of the same characters despite being in a wildly different setting.
If you never played Resident Evil 7 (you should...