Its Mr. Zuck who is trying to profit from the hype, not the other way round. Metaverse as a concept is about owning digital goods with blockchain linked identities and interacting in a virtual environment using avatars. Beyond that there hasn't been much development as far as decentraland and sanbox are concerned. They are just blockchain versions of games like Second Life or even minecraft.

The "Metaverse", for the time being, is really just a farce.

the facebook that the company will re-named as "Meta" and is total different with Decentraland and Sandbox in fact because of facebook says metaverse there bunch play to earn and metaverse project so enjoy the hype

Well, it's just an umbrella term to describe anything that is hosted on the blockchain that allows for mass modal interactions.

So all of the projects that you have mentioned are indeed metaverse projects. There is no central metaverse that is the be all and end all.

Meta/FB is simply trying to get that first mover advantage with the branding and the name change right now.

Why don't you just use dextool? it will be like this https://www.dextools.io/app/ether/pair-explorer/0xa29fe6ef9592b5d408cca961d0fb9b1faf497d6d This tool can also be used in another blockchain like BSC and polygon.

You can check how much tokens that already pooled and how much liquidity that available in your shit token. This will help you to know more about whether you can sell your tokens or not.

I think that you can check on through their smartcontract by verifying it through etherscan. You can also ask the developers about this and they will give you the link to the locked pool.

Liquidity pools are token reserves that are locked in DEX smart contracts and are available to users for token exchange. In the majority
DEX, based on a liquidity pool, automated market makers (AMM) are used, which is a mathematical function that algorithmically determines asset prices depending on supply and demand. You should just look for the pool and it will be said how much liquidity it is there.

Uniswap is working in the following way. A liquidity provider choose the pair and lock coins in different proportions and in the price range that he considers to be more reasonable. So as to check how much is liquidity, you are to find the pool where the coins you need is traded. Maybe you want to swap ETH to this coin, but there is no pool ETH/this coin, so there is a chain of transactions such as ETC-USDT-this coin.

There's a way to check it but this might be a bit complicated for you but if you wanna get the easiest way to check it and then you should go to the CMC and then search what coin that you are looking for. You can check it whether the contract already audited by auditors like certik and hacken or not. That's to make sure that if the smartcontract didn't contain suspicious code like self-destruct function and backdoor to be used to take all of liquidity.
You can try another way like try to copy and pasting the smartcontract address on etherscan and you will be seeing the smartcontract code tab but it's better to use the first step consider smartcontract audit platform like hacken and certike have very good reputation among the smartcontract users and so many platforms have been using certik and hacken to audit smartcontract. You didn't need a complicated way to check the smartcontract and that can save a lot of your time.

It should be understood that curve is the market leader and there are relatively low percentages in it. Therefore if reliability is important to you then choose curve and if you want to get a large percentage then take into account that you will bear much higher risks.