I found the issue, I had this installed from the Dell repo for 20.04 LTS:
libfprint-2-tod1-goodix
more specifically:
libfprint-2-tod1-goodix_0.0.6-0ubuntu1_somerville1_amd64.deb

This worked great with 20.04 and the fprintd version in there, but apparently 
it breaks the current version.
Seems I have to wait untill Dell/goodix releases a new version.

I will close this one since the issue is not with fprintd itself.

** Changed in: fprintd (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1962344

Title:
  fprintd fails to start through core-dump

Status in fprintd package in Ubuntu:
  Invalid

Bug description:
  some more info :
  feb 25 21:14:03 ubuntu-inspiron-5482 systemd[1]: fprintd.service: Main 
process exited, code=dumped, status=11/SEGV
  ░░ Subject: Unit process exited
  ░░ Defined-By: systemd
  ░░ Support: http://www.ubuntu.com/support
  ░░ 
  ░░ An ExecStart= process belonging to unit fprintd.service has exited.
  ░░ 
  ░░ The process' exit code is 'dumped' and its exit status is 11.
  feb 25 21:14:03 ubuntu-inspiron-5482 systemd[1]: fprintd.service: Failed with 
result 'core-dump'.
  ░░ Subject: Unit failed
  ░░ Defined-By: systemd
  ░░ Support: http://www.ubuntu.com/support
  ░░ 
  ░░ The unit fprintd.service has entered the 'failed' state with result 
'core-dump'.
  feb 25 21:14:03 ubuntu-inspiron-5482 systemd[1]: Failed to start Fingerprint 
Authentication Daemon.
  ░░ Subject: A start job for unit fprintd.service has failed
  ░░ Defined-By: systemd
  ░░ Support: http://www.ubuntu.com/support
  ░░ 
  ░░ A start job for unit fprintd.service has finished with a failure.
  ░░ 
  ░░ The job identifier is 4596 and the job result is failed.
  ubuntu@ubuntu-inspiron-5482:~$ dpkg -l fprintd
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name           Version      Architecture Description
  
+++-==============-============-============-==========================================
  ii  fprintd        1.94.2-1     amd64        D-Bus daemon for fingerprint 
reader access

  if the fprintd package is installed and fprintd-enroll is run, it times out.
  That triggers a bug in gdm3 at login, where the user account is not visibe 
and one cannot login.

  I have a goodix fingerprint reader:
  Bus 001 Device 002: ID 27c6:538c Shenzhen Goodix Technology Co.,Ltd. 
Fingerprint Reader

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: fprintd 1.94.2-1
  Uname: Linux 5.12.19-051219-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia wl
  ApportVersion: 2.20.11-0ubuntu78
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Feb 25 21:19:31 2022
  InstallationDate: Installed on 2019-12-17 (801 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  SourcePackage: fprintd
  UpgradeStatus: No upgrade log present (probably fresh install)

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