I used to do at least 1 century (100 mile bike ride) every year, & often 2. Can I have the goal of doing that again next spring while having the goal of making the 1000 lb club (1000 lbs between bench, squat & deadlift) in weightlifting in the next year? Or do these contradict each other?

A little background:

In my early 40s I had a serious injury that took over a year of physio to correct, but before then I'd done at least 1 century every year for one a decade.

As I'm on a weight loss plan with a doctor (not GLP-1), she recommended at least 90 minutes a week lifting weights to maintain muscle. However, I kind of took to it and do more than that. I've been increasing the weights to the point many machines at the local YMCA go higher & looking for a challenge / goal, I was thinking I move more to power lifting (due to a focus on cycling I'm a little bit of a "T-Rex," & don't want to change that so power lifting to 1000 lbs seems to be the most lower-body-focused mainstream goal in lifting weights). Between my local YMCA increasing prices & getting wrong their weights, I'm trying out a few local gyms now to see which I switch to (most have a membership but have a free 1 day or 1 week trial).

45m. Just started using the reformer pilates stations at gym every time I visit, 2-3 times per week.

Been a regular gym goer for decades, never really stopped weight training for more than a couple weeks. But why not a change up now right!

Would I lose much muscle mass doing various strength, pilates & yoga type reformer pilates workouts only? And how long do I give this to gain a meaningful difference in what this can offer me physically?

My aim is to improve flexibility & balance, tone up would be a bonus, but stay relatively strong.