Is it common for Lebanese Jews, Christians, and Druze to support Hezbollah?

Or does it only really appeal to Shia Muslims?

What opinions do these groups usually have on it?

Look, each Lebanese group was against another at least once during their lives.

3 years ago, the Druze were against Hezballah and were almost gonna do a war; now they're close allies and always defend each other.
Christians in Lebanon are divided, thanks to Syria. The Rom Orthodox are divided, and the Maronites too. Some Rom Orthodox are loyal to Hezballah while others aren't. As for the Maronites, there are groups like El Tayar that are close allies to Hezballah while others like the Lebanese Forces there don't like them.
As for the Jews, no one knows about them.

Yes its common and what with all these Hezbollah questions these days just use go ogle and you can find everything you need

its a mixture. every group has support regardless of religious affiliation

there are not many Lebanese Jews living in Lebanon, most left during the Arab-Israeli war in the 40s.

Most Christians do not support Hezbollah.

Druze support whoever they think will benefit them at the time. They change alliances constantly.

Hezbollah is a Shia group, there are some Sunnis that support its attacks on Israel but do not support it in elections. Many Sunnis in fact believe Hezbollah is run by Israeli spies to promote Shia Islam and to give Israel a reason to attack Lebanon.