Just to clarify though, are the sprites from this pack technically compatible with RM's side view battlers?
Viewing post in Time Elements: Character Core Set comments
Technically yes. But they weren't designed specifically for that purpose, so not all of the animations will line up perfectly. From the guide document:
Additionally, the generator can export files in the Side-View (SV) battle layout used by RPG Maker MV and MZ. Please note that the original animations are designed for four-directional action-RPG gameplay, so not every SV animation is represented perfectly. I’ve arranged the SV layout to best map the existing animations to the actions expected by the RPG Maker system. If you plan to use these SV sheets in your game, additional customized changes will likely be required depending on your needs.