TRON had a head start. In the past, it had the lowest fees compared to other networks and fast confirmation times. Today, this may not be the case, but it already has inertia. Sometimes that's all that is needed. For example, Facebook is problematic, but people keep using it just because there are so many users. I'm not saying TRON is bad or good, just saying that it has built momentum, and people are not going to abandon it quickly, even if there are better alternatives now.

Fees on Bitcoin and Ethereum are dynamic, depending on the congestion of those networks, and can significantly vary over time. You can't know them without using some tools too. With Bitcoin, sometimes you can't even tell what fee would be proper at the current moment. You can only see some average estimation, and sometimes Bitcoin transactions get stuck for hours because you paid too little.

Energy requirements are more complicated as they also depend on the network load and various rules that may change over time. Therefore, estimating it manually may not be a good idea.  Here is a calculator that will tell you how much energy you require to send USDT to specific addresses at any given time:

https://energyfather.com/tron-energy-calculator

It will also tell you how much you can save if you buy energy instead of letting TRON burn your TRX for it.

In my country, using TOR (without VPN) is not recommended.   Even though the ISP cannot decrypt this traffic (when using TOR), the very fact of using a software tool like TOR is considered a negative point.

Your website seems to be down. I cannot access the website for some reason. Are you aware of it, or are you already working on fixing it? Here is what it looks like for now

Do you think people would use it?

In Trezor Suite, you can create a signed message using the ETH Address in Trezor (BIP137) or Electrum format (compatibility signature format).

All I can say (what I know) is that it is very difficult to become an investor since the number of applications exceeds the need by an order of magnitude (and this trend has been going on for about a year). It seems one of the developers mentioned that the probability that your application will be approved is less than 3-5%, even if you are a miner.

I am well aware of the supply and demand part though, their bot posts about it on Telegram almost every day.

I have searched if there are any threads here about Rabby Wallet and it seems there are none. I was using a metamask for my daily use. But for me, the meta mask works too slowly. Recently, I found out about Rabby wallet which works exactly like a meta mask but faster, and it has some extra features as well.