SRPP vs. Plate Loaded resp. Mu-Follower vs. Cathode/Plate-Follower - how long will Tubes last in good Sound ?

[tiefbassuebertr]

There are a lot of describtions to read concerning this topologies - go to

http://www.valvewizard.co.uk/SRPP_Blencowe.pdf
vs.
http://www.valvewizard.co.uk/localfeedback.html
http://www.valvewizard.co.uk/pentode.html

and

http://www.valvewizard.co.uk/mufollower.html
vs.
http://www.valvewizard.co.uk/accf.html
http://www.valvewizard.co.uk/pentode.html
https://www.tubecad.com/2011/08/blog0212.htm#:~:text=The cathode follower relies on,voltage relative to input voltage

more URLs:
https://www.tubecad.com/articles_2002/SRPP_Deconstructed/SRPP_Deconstructed.pdf
https://www.tubecad.com/2018/06/blog0427.htm
https://www.diyaudio.com/community/threads/srpp-vs-plate-loaded-musicality-and-details.170999/
https://www.diyaudio.com/community/threads/differential-srpp-gain-control-reduction.337617/
https://www.diyaudio.com/community/threads/how-a-srpp-stage-sounds-like.189729/
https://www.diyaudio.com/community/threads/newbie-to-srpp-and-tubes-1-question.249209/
https://www.jogis-roehrenbude.de/Verstaerker/SRPP-VV/SRPP-VV.htm (German language)

But what happens regarding the sonic character in the different circuit topology as the tubes get older ?
under
https://mesaboogie.zendesk.com/hc/en-us/articles/217178237-How-long-will-tubes-last-
are describe some unwanted effects in general, but wasn't mentioned the associated circuit topology.

I have heard and read often, that SRPP and Mu-Follower are only suited for tubes special made in long life version.
Is this true ?

In one of the German speaker builder magazines "Klang & Ton" or "Hobby HiFi" from 90s this question was describe in detail from Holger Stein (his old URL: www.steinmusic.de) maybe in the issues mentioned here:
https://www.audiomap.de/forum/topic/13705-steinmusic-holger-stein-vorverstärker-inaus-klangton/

Thank you for upload this papers resp. calling the associated issues of magazines and some URLs in this case.

P.S.: The question arises in general (i.e. related to line and phono RIAA stages) but also specifically in my case, where the question is which topology is the best for an active high-pass filter. Regarding the question of multiple positive feedback (Sallen-Key) or multiple negative feedback (MFB), the question is answered here:
https://glass-ware.stores.turbify.net/nostmfbcr.html
But not regarding the question mentioned in the head line for topic.
This I want to know to make a decision,. whether I order the PCB boards under
https://www.tubecad.com/2021/08/blog0543.htm
or not.
Similar question I ask here:
https://www.diyaudio.com/community/...-stage-to-acf-aikido-cathode-follower.374073/