I really love this form factor and would like to have a modern version of this with modern hardware

I really doubt that somebody will margin call one of the most powerful men in the world who is in control of the president of the United States.

It depends on what you want to do. If you’re a business and need those advanced Excel features, those plugins for your ERP and CRM and your job is to create Powerpoints, then Libre Office will give you a lot of pain. If you’re just some private person who wants to write a letter every few months, is maybe doing some light spreadsheeting to split the costs of a vacation and the only presentation you created was that one for uncle Ralphs birthday last year, Libre Office is totally ok. There really is no reason to pay for MS Office

Let’s be honest: Everything that might be “worse” or “annoying” in Firefox for someone is not relevant in comparison to “no working adblocker available”. A browser without adblock is unusable