Nope. That timeline is completely different. 

So, still exist? But without Thanos and Black Order..... sooo, Guardians no exist this reality

Crazy

No Guardians. No Infinity War. No Decimation of Xandar. And if the scene if Thanos killing the 2014 Avengers, no Civil War would have been, only S.H.I.E.L.D. would have kept fighting HYDRA, Ultron never existed, nor Civil War happened, only the Defenders and other heroes would exist, Vulture would keep going with his business, and the list goes and goes. 

No Gamora & Nebula either since the former stayed in 2023 and the latter was killed. Xandar would've been destroyed if 1. Korath got the orb before Quill woke up, or 2. Ronan came for the orb at any point after Quill tried to sell it to the Broker.

No Infinity War means no Endgame so Stark, Black Widow, Vision, Loki, Heimdall, & the Asgardian refugees are alive in that timeline.

All Cap was doing was giving those other timelines a fair advantage to defend themselves by having their missing infinity stone back. Their outcomes could and will be very different from the main MCU timeline.

I don’t know if any of the “What Ifs” will play a role in this.