Both are great games and I think it really depends on your preferences. Disco Elysium is my favorite game of all time, but it's definitely not for everyone since it's a purely story driven experience (which I personally vibe with but I know others feel differently). If you enjoyed the previous Miyazaki/From Soft games then you'll probably dig Sekiro once you get used to how different its combat is. I bounced off it the first time I played but picked it up again earlier this year and loved it.
Both are great games and I think it really depends on your preferences. Disco Elysium is my favorite game of all time, but it's definitely not for everyone since it's a purely story driven experience (which I personally vibe with but I know others feel differently). If you enjoyed the previous Miyazaki/From Soft games then you'll probably dig Sekiro once you get used to how different its combat is. I bounced off it the first time I played but picked it up again earlier this year and loved it.