It's not four consecutive terms, you are only allowed 2 consecutive terms.

Yes it sounds worrisome, the general populace is getting fed up with him running the country for 20 years and want a fresh change of leaders.

But it doesn't help that the alternative far-right candidate is an extremist nutjob whose appointment for the presidential race was done for noone other than nepotism (bearing his jailed father name). That alienated alot of his voting base who wanted a more competent candidate.

In a liberal democracy with many opposing viewpoints, having to elect a single "head of government" that will be necessarily beholden to only one part of the electorate is detrimental, especially in combination with something like FPTP.

A directorate where executive power is distributed over multiple people and executive policy is decided on in a concordat it a much better solution.

Yes.

He just got voted in, if he's doing a good job or people don't like the other guy, people will keep voting or him

no. as presidency is not a dictatorship

Not really. He has never had any real legislative power to back him. The biggest scandal surrounding his party was paying off congressmen and heads of parties in order for them to vote for welfare policies. These policies never would've been voted in if that was not the case. A lot of parties gatekeep votes for important legislation until they get handouts.

Ironically (or not at all) the man who individually received the most money from that scheme is the head of Flavio Bolsonaro's party, and the party who received the most payoff as a whole was Jair Bolsonaro's party at the time.

Politics in Brazil require a great deal of consensus, obscure dealmaking and corruption.