I use OpenLens and this is exactly my sentiment. For someone who isn't fluent with kubectl, these tools are a wonderful way to approach the matter, but if you have learnt kubectl first, which is my case, then this brings you to "unlearn" it
In either case, both tools have made me less proficient with kubectl. Now I mostly use kubectl to apply yaml manifests. Editing a manifest in k9s is not as straightforward as I would like, and it's nicer to have a local copy of the file.