Data is very costly in my country and i have always run my favorite crypto wallets on Linux OS, the problem I am having now is my Linux OS device is not working well anymore because it is very old and sluggish, so now someone sent me a brand new laptop as a gift but since it a windows 11 pc can I move the same nodes data from the old Linux pc HDD to Windows 11? Will it work?
It will work.
If your HDD isn't affected, your Bitcoin folder where your node data(blocks, chainstate, wallets and some other files) will remain intact. You can copy the folder to your new windows laptop.
Are node data for crypto wallets on linux and Windows the same? I am trying as much as possible to avoid downloading the whole data from the beginning, it will cost me alot.
All node store the same data, the same blocks. This is what you should do; copy the Bitcoin folder from your old HDD to your windows, then download a new Bitcoin core, verify the file and install.
However, during the installation make sure to use a custom data directory so the node will be able to locate the file. The node may take some while to fully sync to the latest block if it's been a while since you last downloaded the last block on your old laptop.