If you specifically want the gameplay of 1.19 (The Wild Update), your best bet on a 32-bit PC is running the Pocket Edition (PE) through an Android emulator.
The official launcher makes it difficult to force 32-bit Java. Use Prism Launcher or MultiMC. minecraft 1.19.51 de 32 bits
I understand the nostalgia or the hardware limitation (an old netbook or Windows XP/Vista machine). However, you have better options: If you specifically want the gameplay of 1
Do not use the default .minecraft folder if it previously ran 64-bit. Create a fresh folder for the 32-bit instance to avoid library conflicts. The official launcher makes it difficult to force