I probably wouldn't do a take home test for an interview, but if you're only willing to do the bare minimum, it would probably be a better use of your time (as well as whoever is going to grade it) if you simply refused to do it.

Before I accept a take-home project, I explicitly lay out what I will do and the maximum amount of time I will spend doing it. I've walked away from companies that demanded more than I was willing to give.

I dislike take-home tests less than I dislike whiteboard interviews, so I try to be flexible, without being a pushover.

As an experienced programmer, what does your ideal interview process look like? Do you think your opinion holds true for junior developers as well?

The ideal hiring process imo is actually a training process that is less focused on 'finding the best' but rather focused on helping their local community become great engineers. Companies fund their own bootcamps and pay students $15/hr (with no engineering experience). Students learn and help each other how to code (following a structured curriculum) with mentorship by engineers from the company. When students have finished the basics, they work on open source projects or internal projects following proper engineering process / tools that the company use. When a student has proved that he/she learned how to work well with other engineers and has built a few features, they get hired by the company as a junior engineer and this junior dev would be immediately productive.

This might seem like a crazy idea, but its actually not. The previous companies that I have worked for all offer paid volunteer hours which could go directly to this initiative. The cost of hiring is around 30k per engineer (conservatively), which could help train someone living paycheck to paycheck for an entire year.

I spent the past year and a half starting a non-profit experimenting with this idea and invested all 200k of my annual salary to paying students. The coding tools and environment is set up like a baby version of Google's engineering infrastructure. Students progress are tracked by their merge requests and the complexity of the features that they have built. Students build tools that they use on a daily basis so they are heavily eating their own dogfood. Hopefully, one day I'll be able to build my engineering team by directly hiring from this non-profit. https://garagescript.org

Love the idea of investing in the local community. Training and mentorship is so important, and so many companies sacrifice it for other things.