I feel that retail investors really don't need to research block builders and bundling to the point of writing papers... Just knowing that "transactions don't necessarily get included in blocks in the order you send them" and that some people bundle a bunch of transactions together (sometimes even sneaking yours in) is enough. The more advanced strategies, auction details, sound nice but are mostly unnecessary in practice.

I personally focus on two things: first, don't open large amounts/slippage recklessly; second, use protected channels when possible (private relays, RPC, etc.), and don't blatantly expose your intentions to the public pool. Modularization and the recent buzz around the DA layer are hot topics, but I'm a bit behind... Anyway, in the end, it all comes down to the user asking, "Will my transaction be treated as a target for front-running?" Let's take a sip of tea and not rush into storytelling.