I have, and while Dekoni stuff is better but it's a lot more expensive as well
And I haven't used the GEL Earpads personally, I don't think there should be an issue
someone was selling a Samsung Tab S6 in the classified section a few days ago, you might wanna check that out
here's the link to it :
https://techenclave.com/threads/samsung-tab-s6-t865-amoled-4g-version.219966/#post-2526487
Not sure if it's available in India but how about Samsung Galaxy Active 5
https://www.samsung.com/uk/tablets/others/galaxy-tab-active5-green-128gb-sm-x306bzgaeea/