the guy saying death not is better... sorry to disappoint but they dont compare at all, its an adventure/romance/comedy anime and thats a horror/thriller/sliceoflife/idk anime... art is unique to each series,so is animation and plot.
Pandemic, dude. Their coffers are lower than supposed to be at this point in production as there hasn't been much money to be going around as usually would when making new season. It's commendable how good they've done though. Only Studios that wait couple seasons or year before new project (like God of Highschool's) or who've received massive donations by fans (like My Hero Academia) will be making anything of extremely high quality until at LEAST Spring/Summer 2021 seasons.
Nah.. it's not due to pandemic this series really have a low budget since S1, if not then they wouldn't be compressing 4 volumes of LN in one season, they cutting to much that it's killing the hype like what happen in war game in S2 the pacing of the story was so fast that it killed the mood.
Never mind, Death Note. Though if we're just gonna say the "better" anime is just simply one we like more, then I say Overlord blows both this and your Death Note out of the water. But these are all only opinions dependent upon mere favoritism, so to quote NotF2Bully, "they dont compare at all", as your just saying which anime you want to watch more. And that subjective bias has no bearing on which is "better", just "preferred".