You can change your name in the Java Edition for free as many times as you want, but you must wait 30 days between name changes. For the Bedrock edition, it uses a Microsoft Account. That means it ...

If you own a Chromebook, "Minecraft: Java Edition" is available to you via Linux. Here's how to download and install the popular game on a Chromebook.

Open Minecraft and see if it says Java Edition below the title — if it does, you're playing Java. If it doesn't, you're playing Bedrock. How to change your Minecraft username in Bedrock Edition ...

For users of MineCraft Java edition, that means migrating off of their existing account with Mojang, the studio that was acquired by Microsoft in 2014 for $17.8 billion.