The answer depends on the specific point in the Dragon Ball timeline and the version of Frieza being referenced. Generally, no, Goten is not as strong as Frieza in most scenarios, but there are specific circumstances where a weaker version of Frieza could be comparable to Goten's base form.
Here's a breakdown:
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Early Dragon Ball Z Frieza: The Frieza who fought Goku on Namek is far stronger than Goten. This version of Frieza would effortlessly defeat Goten in his base or Super Saiyan form.
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Resurrected Frieza (Resurrection 'F'): Golden Frieza, after his resurrection and training, is astronomically more powerful than Goten. Even Super Saiyan God Super Saiyan (Super Saiyan Blue) Goku struggled against him.
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Abo and Kado (Dragon Ball: The Return of Son Goku and Friends!): This is where the potential for Goten being comparable to a Frieza-level character arises. Abo and Kado are stated to be as strong as Frieza when they arrive on Earth in this OVA. In this specific instance, Goten and Trunks (in base form) are able to fight them. This implies their base forms could be comparable to, or at least capable of fighting against, a weaker version of Frieza. It's important to note that this is likely referring to Frieza's power level before any significant transformations or training.
Therefore, while generally Goten is significantly weaker than Frieza, in the context of the "Return of Son Goku and Friends!" OVA, the base forms of Goten and Trunks could be argued to be comparable to the power of a weaker Frieza as represented by Abo and Kado upon their arrival on Earth. This comparison refers to Frieza before he achieved his final form on Namek.