Docker plugins are not recognized as commands when running without sudo

I'm running

• Ubuntu 20.04.5 LTS
• Docker version 23.0.1, build a5ee5b1

Running the command

docker build -t some:other Dockerfile

Produces the following output:

unknown shorthand flag: 't' in -t

And

docker build

The following:

docker: 'buildx' is not a docker command.

I installed Docker as recommended from the repo: instructions

Other plugins don't work either (docker compose is not recognized either). Even then, docker info shows

  buildx: Docker Buildx (Docker Inc.)    Version:  v0.10.2    Path:     /home/jpartanen/.docker/cli-plugins/docker-buildx  compose: Docker Compose (Docker Inc.)    Version:  v2.16.0    Path:     /home/jpartanen/.docker/cli-plugins/docker-compose  scan: Docker Scan (Docker Inc.)

Docker runs without sudo with the help of the docker user group, as explained in linux-postinstall. I want to run plugins without sudo as well.

I've reinstalled Docker and rebooted the machine without any change.What could be the problem?