You’re getting downvoted but you’re right. Biden resisted 4+ years of pressure to support changes to the Supreme Court. During the 2020 debates he said he wasn’t in favor of them. Now that his campaign is falling behind, suddenly he’s announcing he’s in favor of term limits for Supreme Court justices even though that would likely require a constitutional amendment.

Biden has a longstanding tendency to be a stubborn old man. He supported the Hyde Amendment for decades but only when he was losing the primary badly in 2020 did he suddenly announce he no longer supported it. This is another last-minute promise to try and save his campaign. Biden defended credit card companies for decades (being a Delaware senator), suddenly seeing him flip and support tenants over corporations seems a bit out of his normal routine.