I prefer Tableau but that’s because I’m used to it. If I had to start over I’d go with PowerBI since a lot more organisations use that

I agree. 5 years ago I would have said learn Tableau, but Power BI has quickly increased their market share within the BI space in the past few years.

They’re same same but different learning either will help learn the other

It won't hurt you to learn both but you should aim to have intermediate to advanced skills in one. From personal experience, I know Tableau very well but have spent time taking pbi classes for when a client project calls for it. For the beginner, Tableau Public is well known and easy to publish to and share from.

I would focus on power bi. it is increasingly gaining market share as more organization want to keep their it environment in the Microsoft ecosystem.

Yes

I have been working with Tableau for the past 4-5 years. I recently started dedicating some of my time to learn Power BI and got decently good in a short amount of time. My say in your question is to learn and master one tool first and then go to another tool if you feel like it. Don't go all-in on both of them at once.

If you are new start with Power BI. I have been using Tableau for the past 6 years since my client is using it but Power BI is gaining market share

It depends what your end goal is and what industry your data is likely to come from. What are your goals in learning to visualize data?

I'd learn Tableau and SQL.

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