(Boldface and color emphasis is mine)
Where did you get that information?
Overthecap has Wilson costing $26M of dead money on the Seahawks' cap this season and zero next season. The only two dead-money charges shown for 2023 so far are $4.2M for Dunlap and $1.5M for Carson.
Spotrac has those two plus several much-smaller dead-money cap charges ranging from $3,334 to $78,585. The result is that instead of just the $5.7M in dead money Overthecap shows, there's a total of $5,870,942 in dead money on the Seahawks' 2023 cap. None of it comes from Wilson.
Wilson is costing the Seahawks $26M of cap space this season, but it looks like that's it. Nothing more next season. And the Seahawks appear to be doing just fine despite having that $26M hole in the 2022 cap. Schneider and Carroll are very good at what they do.