Using " also" at the end of a sentence

Hello…

Is it formal to use " also" at the end of a sentence

I thought that there is a difference between

I also like Egypt
Means that "you like Egypt and I like Egypt as well"

But

I like Egypt also

means that I like A country and I like Egypt as well

Is that right ? And Is that formal ??

Because I read at

oxfordadvancedlearnersdictio … onary/also

and it usually comes before the main verb or after be: I went to New York last year, and I also spent some time in Washington. In British English it is not usually used at the end of a sentence

And

She’s fluent in French and German. She also speaks a little Italian.

which doesn’t match what I thought before

Both
I also like Egypt
and
I like Egypt also
can mean exactly the same thing.
If someone tells you they like Egypt, you can reply with either of those phrases.
If you have just told someone else you like a particular country, you can add either of those phrases to explain that you like Egypt as well as the country you have already mentioned.

OK

when I say

I will have a cup of tea also

Where to put it at the beginning od the sentence ?

I also will have a cup >>>

or

I will also have >>>

Or both are correct ?

And is there any difference in meaning ?

I will also have a cup of tea = I will have a cup of tea as well as the other thing I’m having.
or I will have a cup of tea as well as someone else who is having a cup of tea.

I will have a cup of tea also - means the same as the above.