Given what he was saying on Thursday, I don't think he has gone of his own accord:
(emphasis mine)
Alonso’s deal to drive for Alpine expires at the end of this year. However he made it clear today he intends to remain with his current team.
“I would like to stay here,” he said in response to a question from RaceFans. He intends to begin discussions with them during the summer break and expects a quick resolution.
“I will be on holidays, bosses will be on holidays as well so we need to fix some video calls or whatever,” he said. “But when two parties want to agree on something, it takes 10 minutes. When two parties fight to agree on something, maybe one of the sides is not happy. So it will not take more than 10 minutes with whatever I am talking.”
Talks took place between Alonso and Aston Martin – then known as Racing Point – before he returned to F1 with Alpine in 2021. “We spoke in 2020 when they were very competitive, obviously, and winning races and in the podium,” he said. “And it didn’t went well and I came with Alpine and I’m happy where I am.”
Although Alonso conceded a move to Aston Martin is a possibility, he would prefer to stay where he is. “All the teams are an option as long as they don’t have two drivers signed,” he said.
“My priority is to be with Alpine because we’ve been working and developing this project together for two years now. We are more and more competitive and probably my wish is to stay. But we didn’t sit down completely and move forward things, so still everything’s ongoing.”
“I would like to stay here,” he said in response to a question from RaceFans. He intends to begin discussions with them during the summer break and expects a quick resolution.
“I will be on holidays, bosses will be on holidays as well so we need to fix some video calls or whatever,” he said. “But when two parties want to agree on something, it takes 10 minutes. When two parties fight to agree on something, maybe one of the sides is not happy. So it will not take more than 10 minutes with whatever I am talking.”
Talks took place between Alonso and Aston Martin – then known as Racing Point – before he returned to F1 with Alpine in 2021. “We spoke in 2020 when they were very competitive, obviously, and winning races and in the podium,” he said. “And it didn’t went well and I came with Alpine and I’m happy where I am.”
Although Alonso conceded a move to Aston Martin is a possibility, he would prefer to stay where he is. “All the teams are an option as long as they don’t have two drivers signed,” he said.
“My priority is to be with Alpine because we’ve been working and developing this project together for two years now. We are more and more competitive and probably my wish is to stay. But we didn’t sit down completely and move forward things, so still everything’s ongoing.”
(emphasis mine)
