You type tldr and then some command. For example, tldr tar. It gives you a small list of examples and common use cases for the command.

I find myself using tldr a lot since finding out about it. It’s just so useful for commands that I don’t use enough to commit to memory.

I believe you are confusing ETF with active vs passive investing. Passive (index) mutual funds can have a corresponding ETF, same with actively managed funds/ETF. The main difference is that ETF can be traded throughout the day while mutual funds settle once per day, at least at places like Vanguard and Schwab. Also, mutual funds allow fractional purchases while ETFs do not. Generally, mutual funds are better than ETFs if you are a long term investor type where you don’t care about ups and downs throughout the day and not going to trade during the day. I’d also say that mutual fund fees are usually cheaper than corresponding ETF. It doesn’t matter that much though if you pick mutual fund or its ETF - they represent the same securities just wrapped in a different package.

I’d say it depends on what you do and how much collaboration with other people is involved. I have always used standalone clients, and I’m not a fan anything web browser based (or cloud in general). I started using LibreCalc instead of Excel for my job a few months ago. Now that I got used to it, I love it. It loads faster, has regex out of the box. Excel has already become quite enshittified, in my opinion.

Wow, this is pretty much Gilead in real life

Hit F12 to bypass the bs.