Hello Matthias,
due to Bugzilla/Patchwork/... cleanup work, I just came across #12418, which is assigned to you. Just to make sure the same thing is not developed twice: Are you working on OpenSSH 8.3 for IPFire 2.x ?
If not, just drop me a line, and I'll take care of this. No rush intended. :-)
Thanks, and best regards, Peter Müller