Here's Dana Bourgeois on soft tops (cedar and redwood)-

https://bourgeoisguitars.net/our-news/guitar-guru-soft-top-woods-and-durability/

From the article-

"Other builders, such as Lowden and Olson, make cedar guitars that put smiles on many players’ faces, and will also last as long as their spruce cousins."

He doesn't seem to go into the longevity of the tone quality.
This interests me because I have a 32+ year old L27F Lowden (can't read the serial number for the preamp installed on the neck block) purchased new in 1987. I don't play it much any more as the string spacing doesn't suit me though the action is very low and clean but I do get it out for visitors and it still stacks up nicely next to other quality instruments. After what I've heard about Cedar tops I sometimes wonder if the sound is fading but fresh strings dissuade me from that notion.