Buy the Epomaker HE75 V2 Gaming Keyboard.

It is the only one of the three built for actual gaming performance, not just gaming looks.

What was compared

1. Switches that react, not just click
Hall effect sensors let you set actuation down to 0.01mm and trigger on release, something the AULA F75 Pro and XVX M98 cannot do with fixed mechanical switches. In fast FPS or fighting games that is faster taps and cleaner resets, not a gimmick.
2. Input lag a budget board cannot touch
8K polling cuts the gap between your finger and the screen far below the AULA or XVX's standard polling. Unless you play twitch shooters competitively this is invisible, but if you do, it is the one spec that actually changes your aim.
3. Reviewers call it the best in its class
The HE75 V2 earned an editor's choice award and consensus praise for feel and sound, while the AULA draws complaints about being too loud. That is the difference between a keyboard you enjoy and one you tolerate.
4. Tune it per key, not just per board
Rapid trigger and SOCD settings let you dial in behavior key by key, something neither the AULA nor the XVX offer at all. Casual typists will never open that menu, but gamers who do will not go back.
5. Yes it costs $50 more. Buy it anyway.
The AULA F75 Pro at $79.99 and XVX M98 at $67.99 are genuinely good budget boards, but they are mechanical switch keyboards wearing gaming branding. The HE75 V2's hall effect core is a different category of performance, and that is what you are actually paying for.