Distribute 2 networks on the PC between 2 programs to distribute the load, possible with Windows 10?

I have connected a LAN cable to network a and a WLAN stick to network b on my tower PC. Now I would like to stream games on Twitch with my PC and then use network b for Obs and then use network a for the streamed game because a network alone is too busy for me. Is it possible to decide which program uses which network? Are there separate programs for it or something?

Why easy even if it is complicated? Believe me, a strong monolith works better and connected via a switch, both go full speed.