Graphical Analysis app v6.0.1 (from the Chrome Web Store will display this warning dialog when launched:

To use Graphical Analysis as is, you can close this window and continue as usual. However, we recommend that you both update to ChromeOS 128 or newer, and use the web app version of Graphical Analysis (https://graphicalanalysis.app) going forward.
If you have the needed permissions, the green “Install PWA and Remove…” button will install the PWA as an icon and remove the old packaged app. However, if your Chromebook is managed, the button may leave the package app behind. Contact your IT group for resolution.
Graphical Analysis 6.0.1 was released September 12, 2024, and is the final version of Graphical Analysis that will be delivered in the packaged app format. Future updates will only be in the web app (PWA) format.