God's wrath starts at the vials not before them. All wrath prior to the vials is the wrath of Satan.
--the "7th Trumpet / 3rd Woe / 1st Vial" occurs at pretty much the same point in time (per Rev8:13, 11:14-15, 15:1)
...where 15:1 says,
"And I saw another great and wonderful sign in heaven: seven angels, having seven plagues--the last [seven last plagues], because in them the wrath of God was/is completed." (note: "[in them the wrath of God] IS COMPLETED [G5055]"... not is STARTED. This is not its STARTING POINT.)
V.7 says, "...seven golden bowls *FULL [G1073] of the wrath of God..."
"*[G1073] 1073 gémō – full, especially with the sense "fully occupied with (by)," i.e. filled ("loaded") to capacity; laden (freighted) with; "totally characterized by" (in every sense)."
[this ^ word being distinct from the words G4137 plēróō and G5056 télos - Strong's Greek: 1073. γέμω (gemó) -- to be full (biblehub.com) (See "HELPS word-studies")]
...so this is not saying that the Vials/Bowls of wrath are where it starts and ends, but they are the LAST of it, in which the wrath of God is "COMPLETED [G5055 - teleó ]" per v.1 (etc)