For us, the regional bank we just went to directly had the best interest rate. Better than on the comparison portals, even though we saw a completely different rate from the same bank in the overview there. I think it probably has to do with the high commissions of the comparison portals or the financial advisors. Otherwise, I can't explain it.
First of all, congratulations on the interest rate, the question is whether you could have gotten a cheaper rate with the offer through a broker?
And maybe it was also due to the commission.
The fact is:
Banks already include 1% in their conditions, regardless of whether you do it in the branch or through a broker.
AND
I have very often experienced the opposite. Customer leaves the branch with an offer at 1.40%, then on my screen the same bank, same costs/equity/financing setup, and with me the bank was 0.20-0.30% cheaper...
There are also banks or advisors (a local Volksbank near me) where certain advisors nicely calculate for the customer:
You get this interest rate from me, if you use a broker, then we have to include 1% commission for them, and voila, the customer has to pay it, so the rate gets more expensive...
The funny thing in this case is that his condition, without this example calculation of commission (i.e., the offer without a broker) was also more expensive than with me in the system, including commission for me... well, I handle it through broker support... I advise, prepare all the documents. The bank only checks and creates the contracts afterward (which they have to do anyway after the advisor offered it to the customer).
Unlike the advisor, I only get paid if I actually bring in business. The advisor costs SALARY (whether he makes business or not), the COSTS for the SPACE (also regardless of whether he makes business or not) and then 6 weeks of vacation also cost money, even if he generates no business during that time...
Therefore, many banks like to generate business through brokers, and since they know we can compare many banks, they often offer different conditions than in the branch.
Also, if they have downtime, they can fill business through conditions (if you are cheaper than the competition).
BUT currently there is only one way, up... rates are probably 1% higher now than 3-4 months ago.
PS. Exceptions prove the rule... there are also isolated cases where the branch can actually be cheaper than everyone else... but those are very few exceptions.