The base is original from the producer (chords and melodies), but is complemented with elements that complement the song that come from samplepacks, usually, vocal chops, guitars, wobbles sections, glitch effects. It is the standard in which most of producers work, in a project you will find MIDI files made by the producer, but also melodic loops.
in this project i mainly use serum, sylenth 1, and spire. For this track i tried to give this kinda "Festival" vibes, typical in progressive house music, with this vibe in the track and with this vocals that i think fit perfectly in the song.
Sample pack Bedroom Beats & Lofi Hip-Hop
Loop name BBL_guitar_progressive_picks_G#m