Swimming is subtly different in actual Bedrock compared to Java.

I can only really think of a few examples, but as a long-time Bedrock player, it annoys me enough to write this request.

Examples: ^{that I can think of}

• skimming the surface while swimming only works in bedrock (you just stop swimming in Java)
• holding jump while looking slightly down will only swim upwards in bedrock (if you're looking even slightly below "straight ahead" in java, the jump button does nothing)
• Sprint-jumping into water immediately starts swimming in bedrock edition