Third-party sites claiming to offer the full game for free in a highly compressed 100 MB file are often used to distribute: Malware and Spyware
A 100 MB file would require stripping away everything : no sounds, no textures, no world generation, and certainly no multiplayer code. In short, it wouldn’t be Minecraft anymore. minecraft java edition free download 100 mb
The is actually your best free trial. It’s the complete Java Edition 1.20+ for 5 in-game days (about 100 minutes of real time). You can download it from minecraft.net. Third-party sites claiming to offer the full game