It's a good opportunity to experience what most people on Earth have to deal with. Please don't take it personally Simon, it's just that your compatriots tend to be the most entitled people I've met.
Certainly energy crisis is of political nature, but let's say Germany invested massively in the renewables. It's just not the best source of energy in most places in terms of return on investment. Not to mention the intermittency problem. If they just didn't close their nuclear reactors, Germany would be in much better position to weather off the crisis.
For 2, how often do you see Future Perfect Continuous or just Future Perfect anywhere outside of literary works?
I'd put grammar at much lower priority than vocabulary & common phrases, since knowing just a bunch of words (at least in most languages) can get you very far.
40 hours of flashcards and practice can cover maybe 90% of your typical tourist conversations for many languages. Where are you from? What is your name? What do you do? How much does it cost? Can you give me a discount?
I didn't even realize you can potentially upload videos on Peertube instance which is not hosted by yourself. I'm totally not surprised this feature is not allowed on most instances.
LBRY is barely decentralized. AFAICT, you can't go and upload videos without either going through verification (and many regions are not allowed) or buying LBRY which are listed only on a few exchanges.
You may like "location independent", already used for years. However "remote work" or "working remotely" are a lot more common and don't have pajamas connotation.
At least in Europe, Skyscanner has more airlines than Google Flights, which makes the latter kinda useless if it misses the cheapest/shortest flight. That said, at least GF lists Rynanair & Wizzair now, but through Kiwi.com OTA which I'd rather avoid (direct is cheaper and less issues with changes).
But a lot of details are missing in them. Countries like Romania, Ukraine and Georgia have single-digit % tax for sole proprietors, but IIUC it applies on revenue, not income.
Estonia has 0% corporate tax, but 20% on dividends, which should go well with technique discussed in the OP.