Is there an actual Seal of God ( Rev. 7 ) where the Elect shall survive ? How about the 1 in Latter Day Saint Movement , Toney?

When will the official churches start praying for the false prophet? Rapture is a heresy. One must hide within a small group (10-12 people according to saint Seraphim of Sarov from Russia, 10-15 people group according to saint Gabriel Urgebadze from the country of Georgia) in order to escape the unforgivable mark of the beast. No documents; documents are from Satan; burn them (even documents of deceased relatives). No electronics once you hid so that you won't be tracked (even an old broken unplugged TV set from 1970's will show the infamous evil flying antichrist using Tesla's ether). [Saint Vyacheslav Krasheninnikov] Mark of the beast is given with World Passport (grey plastic card with no name on it); antichrist will release prisoners / insane asylum people to help him mark everyone. Police will mark people on highways; food stores will mark people who steal marked food (because marked food can only be swallowed by a marked person who has three strands of DNA instead of two). Reject vaccines, temperature scans, COVID tests (or similar), etc. Don’t go into UFO to be “healed” by evil demons; demons never do good.

It's more like the good shall be sealed in their foreheads, either in this life or after the resurrection.  Yes, we shall have the name of the New Jerusalem, the name of Christ, etc., written on our foreheads.

The inkhorn is a yes answer.

Ezek.9

[1] He cried also in mine ears with a loud voice, saying, Cause them that have charge over the city to draw near, even every man with his destroying weapon in his hand.

[2] And, behold, six men came from the way of the higher gate, which lieth toward the north, and every man a slaughter weapon in his hand; and one man among them was clothed with linen, with a writer's inkhorn by his side: and they went in, and stood beside the brasen altar.

[3] And the glory of the God of Israel was gone up from the cherub, whereupon he was, to the threshold of the house. And he called to the man clothed with linen, which had the writer's inkhorn by his side;

[4] And the LORD said unto him, Go through the midst of the city, through the midst of Jerusalem, and set a mark upon the foreheads of the men that sigh and that cry for all the abominations that be done in the midst thereof.

[5] And to the others he said in mine hearing, Go ye after him through the city, and smite: let not your eye spare, neither have ye pity:

[6] Slay utterly old and young, both maids, and little children, and women: but come not near any man upon whom is the mark; and begin at my sanctuary. Then they began at the ancient men which were before the house.

[7] And he said unto them, Defile the house, and fill the courts with the slain: go ye forth. And they went forth, and slew in the city.

[8] And it came to pass, while they were slaying them, and I was left, that I fell upon my face, and cried, and said, Ah Lord GOD! wilt thou destroy all the residue of Israel in thy pouring out of thy fury upon Jerusalem?

[9] Then said he unto me, The iniquity of the house of Israel and Judah is exceeding great, and the land is full of blood, and the city full of perverseness: for they say, The LORD hath forsaken the earth, and the LORD seeth not.

[10] And as for me also, mine eye shall not spare, neither will I have pity, but I will recompense their way upon their head.

[11] And, behold, the man clothed with linen, which had the inkhorn by his side, reported the matter, saying, I have done as thou hast commanded me.

No, there is no actual, physical wax seal.

The last few verses of Revelation warn against adding to,or removing stuff from the Holy Bible; Of which the Mormons clearly did..They will be punished accordingly for this..Mormons are clearly not Christians.They only give Jesus credit for being a prophet.

I wouldn't confuse the seal in Revelation 7 with the seals of Revelation 6. The 7th seal doesn't happen until Revelation 8. The seals in Revelation 6 are releasing things. Revelation 7 is a defense for the 144,000. The seventh seal in Revelation 8.