I felt like you until I completed the game, only to be loaded back to a point some two hours ago with zero of the items, weapons or the experience I gained in the last mission. The game then told me I had rewards in my inventory which was a complete lie.
I reloaded and did the entire two hours again, same shit happened.
When you complete the game you gain nothing, in fact you lose levels, items and two hours of progression.
The other bugs were frustrating, sometimes game breaking, but could be worked around, this ending tho... Makes the whole journey pointless to lose your progression.
Finally on the lost progression note. After completion I reloaded my game the next day to find my level 28 nomad corrupt.
So basically, fuck cyberbug2077, I gave it my best and made more allowances than most, but the game is unfinished, period.