Has kubuntu 20 functionality "Freeze Task manager"?

[mstdmstd]

New kubuntu 20 seems has no functionality "Freeze Task manager".
Just exclude acassional removing of menu items  in Task manager.
 But prior kubuntu had such functionality.

Can I add such functionality in kubuntu 20 ?

    $ uname -a
    Linux master-laptop 5.11.0-37-generic #41~20.04.2-Ubuntu SMP Fri Sep 24 09:06:38 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
    $ lsb_release -d; uname -r; uname -i
    Description:    Ubuntu 20.04.3 LTS
    5.11.0-37-generic
    x86_64
    $ plasmashell -v
    plasmashell 5.18.5
    
    $ kf5-config --version
    Qt: 5.12.8
    KDE Frameworks: 5.68.0
    kf5-config: 1.0

Thanks!