So i play cyberpunk on my PlayStation 4 and my Xbox series s ans I want to merge the games progress save file but I can't find how how to on mobile
i don't use a pc so I'm hitting a brick wall here
anyone know if Non PC users can link their gog to different platforms without a PC or did GOG make one huge mistake in this process by forgetting about the non pc players and the chances they don't have a PC to download additional unnecessary ware?

Merging two savegames would already be difficult enough (usually impossible) for two savegames on the same platform.
Most games don't support that at all.

PS4 games are encoded to the user id, so they can't even be shared with other PS4 users, let alone other gaming platforms. I believe, XBox does the same
You would have to decrypt the savegames, parse the data structure, merge different fields, then encode and encrypt the savegame again.
So to get started, you need to find out which encryption system your playstation is using and your internal user ID (usually a long number).
And to do all that you need a PC of course. Playstation has no tools to do any of this. Cyberpunk was created by CD Project Red, not by GOG.
GOG is a games platform to PC, you can link your PS account to Galaxy, but it won't do anything more than display your game and achievements. Does your PS4 show your GOG games or at least your XBox games?

Oh dear My apologies for the misunderstanding

I was actually referring to the actions needed to unlock the cross save feature for cyberpunk I wish to know if I could link my PlayStation to the same Gog account as i have on my xbox so i can transfer my save from PlayStation to xbox same save I completed the game with during launch

Ah, now that I call gettimg something wrong :)
That was the programmer in me talking and not someone who read the update news.

I doubt that you will be able to merge two savegames. In the best case scenario you can use one savegames for other cnsoles.
If it works like other cloud saves, you will be asked which of two savegames to use.

https://www.dexerto.com/cyberpunk-2077/cyberpunk-2077-how-to-enable-cross-progression-on-playstation-xbox-pc-1925927/
https://support.cdprojektred.com/en/cyberpunk/playstation/sp-technical/issue/2242/cross-progression-in-game-versions-with-regional-restrictions

ps:
Cyberpunk has it's own forum
https://www.gog.com/forum/cyberpunk_2077#1665461167

And they're also talking about cross saves
https://www.gog.com/forum/cyberpunk_2077/cross_progression_is_not_working_ps5_to_pc_and_vice_versa

https://www.gog.com/forum/cyberpunk_2077/cross_progression_not_working_from_xbox_pc