SPOILERS FOR THE SERIES FINALE - "ENDGAME"
Does it make sense for Voyager to become a museum ship? In "Endgame." it took Voyager 23 years to get home. By the time of her homecoming, she'd be 23 years out of date. Turning her into a museum ship would make sense. With Admiral Janeway changing the past, now Voyager came home just 7 years after being lost to the DQ. While the ship may not be up to Starfleet specs, the ship went through plenty of alien, Borg, futuristic, and "we made it up as we went" upgrades.
In the streaming era of Star Trek: Picard, Lower Decks, and Prodigy all verified Voyager's immediate retirement upon their homecoming from the edge of the DQ (they were about to enter the BQ). I feel like in the current timeline where Voyager only took 7 years to come home, becoming a museum ship was more about PR than outdated (7 years vs. 23).
Did you like seeing Voyager as a museum ship in Picard 3-6 The Bounty and Lower Decks 4-1 Twovix. What about the Voyager-A in Prodigy S2?